39145520554 has 32 divisors (see below), whose sum is σ = 70601319936. Its totient is φ = 15925092480.

The previous prime is 39145520539. The next prime is 39145520597. The reversal of 39145520554 is 45502554193.

It is a self number, because there is not a number n which added to its sum of digits gives 39145520554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900354 + ... + 942829.

It is an arithmetic number, because the mean of its divisors is an integer number (2206291248).

Almost surely, 2^39145520554 is an apocalyptic number.

39145520554 is a deficient number, since it is larger than the sum of its proper divisors (31455799382).

39145520554 is a wasteful number, since it uses less digits than its factorization.

39145520554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843270.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 39145520554 in words is "thirty-nine billion, one hundred forty-five million, five hundred twenty thousand, five hundred fifty-four".