3553978306938 has 16 divisors (see below), whose sum is σ = 7224480493536. Its totient is φ = 1165238789040.

The previous prime is 3553978306897. The next prime is 3553978306951. The reversal of 3553978306938 is 8396038793553.

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, 4855161256 + ... + 4855161987.

It is an arithmetic number, because the mean of its divisors is an integer number (451530030846).

Almost surely, 2^{3553978306938} is an apocalyptic number.

3553978306938 is an abundant number, since it is smaller than the sum of its proper divisors (3670502186598).

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

3553978306938 is a wasteful number, since it uses less digits than its factorization.

3553978306938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9710323309.

The product of its (nonzero) digits is 440899200, while the sum is 69.

The spelling of 3553978306938 in words is "three trillion, five hundred fifty-three billion, nine hundred seventy-eight million, three hundred six thousand, nine hundred thirty-eight".