39143819725940 has 24 divisors (see below), whose sum is σ = 82204594553760. Its totient is φ = 15657037770528.

The previous prime is 39143819725939. The next prime is 39143819725951. The reversal of 39143819725940 is 4952791834193.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29977250 + ... + 31255769.

It is an arithmetic number, because the mean of its divisors is an integer number (3425191439740).

Almost surely, 2^{39143819725940} is an apocalyptic number.

It is an amenable number.

39143819725940 is an abundant number, since it is smaller than the sum of its proper divisors (43060774827820).

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

39143819725940 is a wasteful number, since it uses less digits than its factorization.

39143819725940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61264991 (or 61264989 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 39143819725940 in words is "thirty-nine trillion, one hundred forty-three billion, eight hundred nineteen million, seven hundred twenty-five thousand, nine hundred forty".