85691306490 has 32 divisors (see below), whose sum is σ = 205697352960. Its totient is φ = 22846768704.

The previous prime is 85691306461. The next prime is 85691306549. The reversal of 85691306490 is 9460319658.

It is a super-2 number, since 2×85691306490² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99570 + ... + 425789.

It is an arithmetic number, because the mean of its divisors is an integer number (6428042280).

Almost surely, 2^85691306490 is an apocalyptic number.

85691306490 is an abundant number, since it is smaller than the sum of its proper divisors (120006046470).

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

85691306490 is a wasteful number, since it uses less digits than its factorization.

85691306490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530806.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 85691306490 in words is "eighty-five billion, six hundred ninety-one million, three hundred six thousand, four hundred ninety".