387746749957 has 8 divisors (see below), whose sum is σ = 443934729216. Its totient is φ = 331757667312.

The previous prime is 387746749937. The next prime is 387746749993. The reversal of 387746749957 is 759947647783.

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 387746749957 - 2⁷ = 387746749829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387746749927) 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, 49719973 + ... + 49727770.

It is an arithmetic number, because the mean of its divisors is an integer number (55491841152).

Almost surely, 2^387746749957 is an apocalyptic number.

It is an amenable number.

387746749957 is a deficient number, since it is larger than the sum of its proper divisors (56187979259).

387746749957 is an equidigital number, since it uses as much as digits as its factorization.

387746749957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99448307.

The product of its digits is 2240421120, while the sum is 76.

The spelling of 387746749957 in words is "three hundred eighty-seven billion, seven hundred forty-six million, seven hundred forty-nine thousand, nine hundred fifty-seven".