45197205128 has 8 divisors (see below), whose sum is σ = 84744759630. Its totient is φ = 22598602560.

The previous prime is 45197205113. The next prime is 45197205197. The reversal of 45197205128 is 82150279154.

45197205128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25613441764 + 19583763364 = 160042^2 + 139942^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824825313 + ... + 2824825328.

Almost surely, 2^45197205128 is an apocalyptic number.

It is an amenable number.

45197205128 is a deficient number, since it is larger than the sum of its proper divisors (39547554502).

45197205128 is a wasteful number, since it uses less digits than its factorization.

45197205128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649650647 (or 5649650643 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 45197205128 in words is "forty-five billion, one hundred ninety-seven million, two hundred five thousand, one hundred twenty-eight".