45537957394 has 4 divisors (see below), whose sum is σ = 68306936094. Its totient is φ = 22768978696.

The previous prime is 45537957383. The next prime is 45537957407. The reversal of 45537957394 is 49375973554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31504475025 + 14033482369 = 177495^2 + 118463^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11384489347 + ... + 11384489350.

Almost surely, 2^45537957394 is an apocalyptic number.

45537957394 is a deficient number, since it is larger than the sum of its proper divisors (22768978700).

45537957394 is a wasteful number, since it uses less digits than its factorization.

45537957394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22768978699.

The product of its digits is 71442000, while the sum is 61.

The spelling of 45537957394 in words is "forty-five billion, five hundred thirty-seven million, nine hundred fifty-seven thousand, three hundred ninety-four".