39429894053672 has 32 divisors (see below), whose sum is σ = 74137159163520. Its totient is φ = 19659991701120.

The previous prime is 39429894053651. The next prime is 39429894053677. The reversal of 39429894053672 is 27635049892493.

It is a junction number, because it is equal to n+sod(n) for n = 39429894053596 and 39429894053605.

It is not an unprimeable number, because it can be changed into a prime (39429894053677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47199047 + ... + 48027177.

It is an arithmetic number, because the mean of its divisors is an integer number (2316786223860).

Almost surely, 2^{39429894053672} is an apocalyptic number.

It is an amenable number.

39429894053672 is a deficient number, since it is larger than the sum of its proper divisors (34707265109848).

39429894053672 is a wasteful number, since it uses less digits than its factorization.

39429894053672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844721 (or 844717 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 71.

The spelling of 39429894053672 in words is "thirty-nine trillion, four hundred twenty-nine billion, eight hundred ninety-four million, fifty-three thousand, six hundred seventy-two".