378858751677 has 24 divisors (see below), whose sum is σ = 642320804736. Its totient is φ = 210639613536.

The previous prime is 378858751669. The next prime is 378858751703. The reversal of 378858751677 is 776157858873.

378858751677 is a `hidden beast` number, since 37 + 8 + 8 + 5 + 8 + 7 + 516 + 77 = 666.

It is not a de Polignac number, because 378858751677 - 2³ = 378858751669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378858751277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81262953 + ... + 81267614.

It is an arithmetic number, because the mean of its divisors is an integer number (26763366864).

Almost surely, 2^378858751677 is an apocalyptic number.

378858751677 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

378858751677 is a deficient number, since it is larger than the sum of its proper divisors (263462053059).

378858751677 is a wasteful number, since it uses less digits than its factorization.

378858751677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162530617 (or 162530614 counting only the distinct ones).

The product of its digits is 553190400, while the sum is 72.

The spelling of 378858751677 in words is "three hundred seventy-eight billion, eight hundred fifty-eight million, seven hundred fifty-one thousand, six hundred seventy-seven".