86071157780 has 12 divisors (see below), whose sum is σ = 180749431380. Its totient is φ = 34428463104.

The previous prime is 86071157779. The next prime is 86071157839. The reversal of 86071157780 is 8775117068.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9276771856 + 76794385924 = 96316^2 + 277118^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151778925 + ... + 2151778964.

It is an arithmetic number, because the mean of its divisors is an integer number (15062452615).

Almost surely, 2^86071157780 is an apocalyptic number.

It is an amenable number.

86071157780 is an abundant number, since it is smaller than the sum of its proper divisors (94678273600).

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

86071157780 is a wasteful number, since it uses less digits than its factorization.

86071157780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303557898 (or 4303557896 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 50.

The spelling of 86071157780 in words is "eighty-six billion, seventy-one million, one hundred fifty-seven thousand, seven hundred eighty".