45814489940 has 24 divisors (see below), whose sum is σ = 96288764040. Its totient is φ = 18310875008.

The previous prime is 45814489939. The next prime is 45814489951. The reversal of 45814489940 is 4998441854.

It can be written as a sum of positive squares in 4 ways, for example, as 13084614544 + 32729875396 = 114388^2 + 180914^2 .

It is a super-2 number, since 2×45814489940² (a number of 22 digits) contains 22 as substring.

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, 907367 + ... + 956526.

It is an arithmetic number, because the mean of its divisors is an integer number (4012031835).

Almost surely, 2^45814489940 is an apocalyptic number.

It is an amenable number.

45814489940 is an abundant number, since it is smaller than the sum of its proper divisors (50474274100).

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

45814489940 is a wasteful number, since it uses less digits than its factorization.

45814489940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865131 (or 1865129 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 45814489940 in words is "forty-five billion, eight hundred fourteen million, four hundred eighty-nine thousand, nine hundred forty".