381393637757 has 8 divisors (see below), whose sum is σ = 416264032800. Its totient is φ = 346556283760.

The previous prime is 381393637717. The next prime is 381393637759. The reversal of 381393637757 is 757736393183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381393637757 - 2⁶ = 381393637693 is a prime.

It is a super-2 number, since 2×381393637757² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381393637757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381393637759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8236118 + ... + 8282295.

It is an arithmetic number, because the mean of its divisors is an integer number (52033004100).

Almost surely, 2^381393637757 is an apocalyptic number.

It is an amenable number.

381393637757 is a deficient number, since it is larger than the sum of its proper divisors (34870395043).

381393637757 is a wasteful number, since it uses less digits than its factorization.

381393637757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520523.

The product of its digits is 60011280, while the sum is 62.

The spelling of 381393637757 in words is "three hundred eighty-one billion, three hundred ninety-three million, six hundred thirty-seven thousand, seven hundred fifty-seven".