39970319550 has 96 divisors (see below), whose sum is σ = 114455507712. Its totient is φ = 9041863680.

The previous prime is 39970319527. The next prime is 39970319561. The reversal of 39970319550 is 5591307993.

It is a super-2 number, since 2×39970319550² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39970319493 and 39970319502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94372 + ... + 298071.

It is an arithmetic number, because the mean of its divisors is an integer number (1192244872).

Almost surely, 2^39970319550 is an apocalyptic number.

39970319550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39970319550 is an abundant number, since it is smaller than the sum of its proper divisors (74485188162).

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

39970319550 is a wasteful number, since it uses less digits than its factorization.

39970319550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392562 (or 392557 counting only the distinct ones).

The product of its (nonzero) digits is 1148175, while the sum is 51.

The spelling of 39970319550 in words is "thirty-nine billion, nine hundred seventy million, three hundred nineteen thousand, five hundred fifty".