102888457631 has 4 divisors (see below), whose sum is σ = 102898128264. Its totient is φ = 102878787000.

The previous prime is 102888457619. The next prime is 102888457673. The reversal of 102888457631 is 136754888201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136754888201 = 809 ⋅169041889.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102888457631 is a prime.

It is a super-2 number, since 2×102888457631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102888457831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4819340 + ... + 4840641.

It is an arithmetic number, because the mean of its divisors is an integer number (25724532066).

Almost surely, 2^102888457631 is an apocalyptic number.

102888457631 is a deficient number, since it is larger than the sum of its proper divisors (9670633).

102888457631 is an equidigital number, since it uses as much as digits as its factorization.

102888457631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670632.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 102888457631 in words is "one hundred two billion, eight hundred eighty-eight million, four hundred fifty-seven thousand, six hundred thirty-one".