45375551388 has 18 divisors (see below), whose sum is σ = 114699310544. Its totient is φ = 15125183784.

The previous prime is 45375551381. The next prime is 45375551399. The reversal of 45375551388 is 88315557354.

45375551388 is a `hidden beast` number, since 4 + 5 + 3 + 7 + 5 + 551 + 3 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45375551381) 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, 630215956 + ... + 630216027.

Almost surely, 2^45375551388 is an apocalyptic number.

It is an amenable number.

45375551388 is an abundant number, since it is smaller than the sum of its proper divisors (69323759156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45375551388 is a wasteful number, since it uses less digits than its factorization.

45375551388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260431993 (or 1260431988 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 54.

The spelling of 45375551388 in words is "forty-five billion, three hundred seventy-five million, five hundred fifty-one thousand, three hundred eighty-eight".