45170378508 has 24 divisors (see below), whose sum is σ = 105404750640. Its totient is φ = 15055764160.

The previous prime is 45170378507. The next prime is 45170378537. The reversal of 45170378508 is 80587307154.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45170378507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66178 + ... + 307766.

It is an arithmetic number, because the mean of its divisors is an integer number (4391864610).

Almost surely, 2^45170378508 is an apocalyptic number.

It is an amenable number.

45170378508 is an abundant number, since it is smaller than the sum of its proper divisors (60234372132).

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

45170378508 is a wasteful number, since it uses less digits than its factorization.

45170378508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257177 (or 257175 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 45170378508 in words is "forty-five billion, one hundred seventy million, three hundred seventy-eight thousand, five hundred eight".