10147051861 has 2 divisors, whose sum is σ = 10147051862. Its totient is φ = 10147051860.

The previous prime is 10147051777. The next prime is 10147051883. The reversal of 10147051861 is 16815074101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10107286225 + 39765636 = 100535^2 + 6306^2 .

It is a cyclic number.

It is not a de Polignac number, because 10147051861 - 2¹⁵ = 10147019093 is a prime.

It is a super-2 number, since 2×10147051861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10147051561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5073525930 + 5073525931.

It is an arithmetic number, because the mean of its divisors is an integer number (5073525931).

Almost surely, 2^10147051861 is an apocalyptic number.

It is an amenable number.

10147051861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10147051861 is an equidigital number, since it uses as much as digits as its factorization.

10147051861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 10147051861 in words is "ten billion, one hundred forty-seven million, fifty-one thousand, eight hundred sixty-one".