45450123400 has 48 divisors (see below), whose sum is σ = 115278045840. Its totient is φ = 16527316800.

The previous prime is 45450123391. The next prime is 45450123401. The reversal of 45450123400 is 432105454.

It is not an unprimeable number, because it can be changed into a prime (45450123401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10327374 + ... + 10331773.

It is an arithmetic number, because the mean of its divisors is an integer number (2401625955).

Almost surely, 2^45450123400 is an apocalyptic number.

45450123400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45450123400 is an abundant number, since it is smaller than the sum of its proper divisors (69827922440).

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

45450123400 is a wasteful number, since it uses less digits than its factorization.

45450123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659174 (or 20659165 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 45450123400 its reverse (432105454), we get a palindrome (45882228854).

The spelling of 45450123400 in words is "forty-five billion, four hundred fifty million, one hundred twenty-three thousand, four hundred".