378820261772 has 12 divisors (see below), whose sum is σ = 691758739056. Its totient is φ = 181174907760.

The previous prime is 378820261769. The next prime is 378820261783. The reversal of 378820261772 is 277162028873.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058805679 + ... + 2058805862.

It is an arithmetic number, because the mean of its divisors is an integer number (57646561588).

Almost surely, 2^378820261772 is an apocalyptic number.

It is an amenable number.

378820261772 is a deficient number, since it is larger than the sum of its proper divisors (312938477284).

378820261772 is a wasteful number, since it uses less digits than its factorization.

378820261772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117611568 (or 4117611566 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 378820261772 in words is "three hundred seventy-eight billion, eight hundred twenty million, two hundred sixty-one thousand, seven hundred seventy-two".