Search a number
-
+
368642626246831 is a prime number
BaseRepresentation
bin101001111010001110100110…
…0110010010101100010101111
31210100020220001110101021001111
41103310131030302111202233
5341304320044304344311
63344012030133252451
7140435356635552136
oct12364351462254257
91710226043337044
10368642626246831
11a7508507028522
12354194b1794127
1312a90b096b9a01
146706580d7491d
152c94392543d21
hex14f474cc958af

368642626246831 has 2 divisors, whose sum is σ = 368642626246832. Its totient is φ = 368642626246830.

The previous prime is 368642626246813. The next prime is 368642626246919. The reversal of 368642626246831 is 138642626246863.

Together with previous prime (368642626246813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 368642626246831 - 223 = 368642617858223 is a prime.

It is a super-2 number, since 2×3686426262468312 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368642626276831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184321313123415 + 184321313123416.

It is an arithmetic number, because the mean of its divisors is an integer number (184321313123416).

Almost surely, 2368642626246831 is an apocalyptic number.

368642626246831 is a deficient number, since it is larger than the sum of its proper divisors (1).

368642626246831 is an equidigital number, since it uses as much as digits as its factorization.

368642626246831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 573308928, while the sum is 67.

The spelling of 368642626246831 in words is "three hundred sixty-eight trillion, six hundred forty-two billion, six hundred twenty-six million, two hundred forty-six thousand, eight hundred thirty-one".