91709462452 has 24 divisors (see below), whose sum is σ = 161849305800. Its totient is φ = 45467873280.

The previous prime is 91709462441. The next prime is 91709462483. The reversal of 91709462452 is 25426490719.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29531047716 + 62178414736 = 171846^2 + 249356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91709462396 and 91709462405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210552 + ... + 477232.

It is an arithmetic number, because the mean of its divisors is an integer number (6743721075).

Almost surely, 2^91709462452 is an apocalyptic number.

It is an amenable number.

91709462452 is a deficient number, since it is larger than the sum of its proper divisors (70139843348).

91709462452 is a wasteful number, since it uses less digits than its factorization.

91709462452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267411 (or 267409 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 91709462452 in words is "ninety-one billion, seven hundred nine million, four hundred sixty-two thousand, four hundred fifty-two".