91970589696 has 176 divisors, whose sum is σ = 267932321280. Its totient is φ = 27922268160.

The previous prime is 91970589691. The next prime is 91970589721. The reversal of 91970589696 is 69698507919.

It is a super-3 number, since 3×91970589696³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91970589696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91970589691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590540 + ... + 1647348.

Almost surely, 2^91970589696 is an apocalyptic number.

91970589696 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91970589696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133966160640).

91970589696 is an abundant number, since it is smaller than the sum of its proper divisors (175961731584).

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

91970589696 is a wasteful number, since it uses less digits than its factorization.

91970589696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56880 (or 56862 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 69.

The spelling of 91970589696 in words is "ninety-one billion, nine hundred seventy million, five hundred eighty-nine thousand, six hundred ninety-six".