377897798772 has 72 divisors (see below), whose sum is σ = 1031587764480. Its totient is φ = 115952304960.

The previous prime is 377897798753. The next prime is 377897798807. The reversal of 377897798772 is 277897798773.

377897798772 is a `hidden beast` number, since 377 + 8 + 97 + 7 + 98 + 7 + 72 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 377897798691 and 377897798700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 956604 + ... + 1292627.

It is an arithmetic number, because the mean of its divisors is an integer number (14327607840).

Almost surely, 2^377897798772 is an apocalyptic number.

It is an amenable number.

377897798772 is an abundant number, since it is smaller than the sum of its proper divisors (653689965708).

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

377897798772 is a wasteful number, since it uses less digits than its factorization.

377897798772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249613 (or 2249608 counting only the distinct ones).

The product of its digits is 3659354496, while the sum is 81.

Subtracting from 377897798772 its reverse (277897798773), we obtain a palindrome (99999999999).

The spelling of 377897798772 in words is "three hundred seventy-seven billion, eight hundred ninety-seven million, seven hundred ninety-eight thousand, seven hundred seventy-two".