87212429916 has 24 divisors (see below), whose sum is σ = 204671950224. Its totient is φ = 28902769920.

The previous prime is 87212429881. The next prime is 87212429923. The reversal of 87212429916 is 61992421278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21002845 + ... + 21006996.

It is an arithmetic number, because the mean of its divisors is an integer number (8527997926).

Almost surely, 2^87212429916 is an apocalyptic number.

It is an amenable number.

87212429916 is an abundant number, since it is smaller than the sum of its proper divisors (117459520308).

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

87212429916 is a wasteful number, since it uses less digits than its factorization.

87212429916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42010021 (or 42010019 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The spelling of 87212429916 in words is "eighty-seven billion, two hundred twelve million, four hundred twenty-nine thousand, nine hundred sixteen".