91526075340 has 384 divisors, whose sum is σ = 329212477440. Its totient is φ = 18515008512.

The previous prime is 91526075323. The next prime is 91526075357. The reversal of 91526075340 is 4357062519.

It is an interprime number because it is at equal distance from previous prime (91526075323) and next prime (91526075357).

It is a super-2 number, since 2×91526075340² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 91526075292 and 91526075301.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7886422 + ... + 7898018.

It is an arithmetic number, because the mean of its divisors is an integer number (857324160).

Almost surely, 2^91526075340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91526075340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164606238720).

91526075340 is an abundant number, since it is smaller than the sum of its proper divisors (237686402100).

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

91526075340 is a wasteful number, since it uses less digits than its factorization.

91526075340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11701 (or 11699 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 91526075340 in words is "ninety-one billion, five hundred twenty-six million, seventy-five thousand, three hundred forty".