381437415377 has 4 divisors (see below), whose sum is σ = 381564099696. Its totient is φ = 381310731060.

The previous prime is 381437415349. The next prime is 381437415397. The reversal of 381437415377 is 773514734183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773514734183 = 8191 ⋅94434713.

It is a cyclic number.

It is not a de Polignac number, because 381437415377 - 2¹² = 381437411281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381437415397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63337643 + ... + 63343664.

It is an arithmetic number, because the mean of its divisors is an integer number (95391024924).

Almost surely, 2^381437415377 is an apocalyptic number.

It is an amenable number.

381437415377 is a deficient number, since it is larger than the sum of its proper divisors (126684319).

381437415377 is a wasteful number, since it uses less digits than its factorization.

381437415377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126684318.

The product of its digits is 5927040, while the sum is 53.

The spelling of 381437415377 in words is "three hundred eighty-one billion, four hundred thirty-seven million, four hundred fifteen thousand, three hundred seventy-seven".