91529882152 has 16 divisors (see below), whose sum is σ = 172078637940. Its totient is φ = 45642245376.

The previous prime is 91529882111. The next prime is 91529882153. The reversal of 91529882152 is 25128892519.

It can be written as a sum of positive squares in 2 ways, for example, as 90934814916 + 595067236 = 301554^2 + 24394^2 .

It is a super-2 number, since 2×91529882152² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91529882152.

It is not an unprimeable number, because it can be changed into a prime (91529882153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15333793 + ... + 15339760.

Almost surely, 2^91529882152 is an apocalyptic number.

It is an amenable number.

91529882152 is a deficient number, since it is larger than the sum of its proper divisors (80548755788).

91529882152 is a wasteful number, since it uses less digits than its factorization.

91529882152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30673932 (or 30673928 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 52.

The spelling of 91529882152 in words is "ninety-one billion, five hundred twenty-nine million, eight hundred eighty-two thousand, one hundred fifty-two".