102761881455261 has 32 divisors (see below), whose sum is σ = 160501764505600. Its totient is φ = 58457751779952.

The previous prime is 102761881455251. The next prime is 102761881455263. The reversal of 102761881455261 is 162554188167201.

It is not a de Polignac number, because 102761881455261 - 2³⁸ = 102487003548317 is a prime.

It is a super-2 number, since 2×102761881455261² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102761881455263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223684825 + ... + 224143758.

It is an arithmetic number, because the mean of its divisors is an integer number (5015680140800).

Almost surely, 2^{102761881455261} is an apocalyptic number.

It is an amenable number.

102761881455261 is a deficient number, since it is larger than the sum of its proper divisors (57739883050339).

102761881455261 is an equidigital number, since it uses as much as digits as its factorization.

102761881455261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447828830 (or 447828816 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 102761881455261 in words is "one hundred two trillion, seven hundred sixty-one billion, eight hundred eighty-one million, four hundred fifty-five thousand, two hundred sixty-one".