39915954912704 has 112 divisors (see below), whose sum is σ = 87000588658368. Its totient is φ = 18056438120448.

The previous prime is 39915954912601. The next prime is 39915954912709. The reversal of 39915954912704 is 40721945951993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39915954912709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42172784 + ... + 43108880.

It is an arithmetic number, because the mean of its divisors is an integer number (776790970164).

Almost surely, 2^{39915954912704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39915954912704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43500294329184).

39915954912704 is an abundant number, since it is smaller than the sum of its proper divisors (47084633745664).

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

39915954912704 is a wasteful number, since it uses less digits than its factorization.

39915954912704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937142 (or 937132 counting only the distinct ones).

The product of its (nonzero) digits is 110224800, while the sum is 68.

The spelling of 39915954912704 in words is "thirty-nine trillion, nine hundred fifteen billion, nine hundred fifty-four million, nine hundred twelve thousand, seven hundred four".