86537357802 has 224 divisors, whose sum is σ = 228061008000. Its totient is φ = 24105475584.

The previous prime is 86537357789. The next prime is 86537357831. The reversal of 86537357802 is 20875373568.

86537357802 is a `hidden beast` number, since 8 + 6 + 537 + 35 + 78 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 82494574 + ... + 82495622.

It is an arithmetic number, because the mean of its divisors is an integer number (1018129500).

Almost surely, 2^86537357802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86537357802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114030504000).

86537357802 is an abundant number, since it is smaller than the sum of its proper divisors (141523650198).

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

86537357802 is a wasteful number, since it uses less digits than its factorization.

86537357802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 86537357802 in words is "eighty-six billion, five hundred thirty-seven million, three hundred fifty-seven thousand, eight hundred two".