45948451640 has 128 divisors (see below), whose sum is σ = 133939008000. Its totient is φ = 13776542208.

The previous prime is 45948451613. The next prime is 45948451673. The reversal of 45948451640 is 4615484954.

It is a super-2 number, since 2×45948451640² (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 31 ways as a sum of consecutive naturals, for example, 263030 + ... + 401349.

It is an arithmetic number, because the mean of its divisors is an integer number (1046398500).

Almost surely, 2^45948451640 is an apocalyptic number.

45948451640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45948451640 is an abundant number, since it is smaller than the sum of its proper divisors (87990556360).

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

45948451640 is a wasteful number, since it uses less digits than its factorization.

45948451640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664429 (or 664425 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 45948451640 in words is "forty-five billion, nine hundred forty-eight million, four hundred fifty-one thousand, six hundred forty".