39945418410 has 32 divisors (see below), whose sum is σ = 97493906880. Its totient is φ = 10471566848.

The previous prime is 39945418399. The next prime is 39945418441. The reversal of 39945418410 is 1481454993.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39945418410.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11282247 + ... + 11285786.

It is an arithmetic number, because the mean of its divisors is an integer number (3046684590).

Almost surely, 2^39945418410 is an apocalyptic number.

39945418410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39945418410 is an abundant number, since it is smaller than the sum of its proper divisors (57548488470).

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

39945418410 is a wasteful number, since it uses less digits than its factorization.

39945418410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568102.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 39945418410 in words is "thirty-nine billion, nine hundred forty-five million, four hundred eighteen thousand, four hundred ten".