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40172847863 is a prime number
BaseRepresentation
bin100101011010011111…
…010000001011110111
310211200201022010012012
4211122133100023313
51124233222112423
630242151314435
72621343400301
oct453237201367
9124621263165
1040172847863
1116045586215
12795197ba1b
133a32b20bc5
141d31522971
1510a1c7b078
hex95a7d02f7

40172847863 has 2 divisors, whose sum is σ = 40172847864. Its totient is φ = 40172847862.

The previous prime is 40172847859. The next prime is 40172847929. The reversal of 40172847863 is 36874827104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40172847863 - 22 = 40172847859 is a prime.

It is a super-2 number, since 2×401728478632 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40172847823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20086423931 + 20086423932.

It is an arithmetic number, because the mean of its divisors is an integer number (20086423932).

Almost surely, 240172847863 is an apocalyptic number.

40172847863 is a deficient number, since it is larger than the sum of its proper divisors (1).

40172847863 is an equidigital number, since it uses as much as digits as its factorization.

40172847863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 40172847863 in words is "forty billion, one hundred seventy-two million, eight hundred forty-seven thousand, eight hundred sixty-three".