91952527457 has 6 divisors (see below), whose sum is σ = 106965185058. Its totient is φ = 78816452064.

The previous prime is 91952527393. The next prime is 91952527529. The reversal of 91952527457 is 75472525919.

It can be written as a sum of positive squares in only one way, i.e., 58501580641 + 33450946816 = 241871^2 + 182896^2 .

It is not a de Polignac number, because 91952527457 - 2⁶ = 91952527393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91952527157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 938291048 + ... + 938291145.

It is an arithmetic number, because the mean of its divisors is an integer number (17827530843).

Almost surely, 2^91952527457 is an apocalyptic number.

It is an amenable number.

91952527457 is a deficient number, since it is larger than the sum of its proper divisors (15012657601).

91952527457 is a wasteful number, since it uses less digits than its factorization.

91952527457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876582207 (or 1876582200 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 56.

The spelling of 91952527457 in words is "ninety-one billion, nine hundred fifty-two million, five hundred twenty-seven thousand, four hundred fifty-seven".