87251379708 has 24 divisors (see below), whose sum is σ = 203794959312. Its totient is φ = 29054020864.

The previous prime is 87251379703. The next prime is 87251379713. The reversal of 87251379708 is 80797315278.

It is an interprime number because it is at equal distance from previous prime (87251379703) and next prime (87251379713).

It is a super-2 number, since 2×87251379708² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87251379703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3709335 + ... + 3732782.

It is an arithmetic number, because the mean of its divisors is an integer number (8491456638).

Almost surely, 2^87251379708 is an apocalyptic number.

It is an amenable number.

87251379708 is an abundant number, since it is smaller than the sum of its proper divisors (116543579604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87251379708 is a wasteful number, since it uses less digits than its factorization.

87251379708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7443101 (or 7443099 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 87251379708 in words is "eighty-seven billion, two hundred fifty-one million, three hundred seventy-nine thousand, seven hundred eight".