378650674446631 has 4 divisors (see below), whose sum is σ = 379513204457200. Its totient is φ = 377788144436064.

The previous prime is 378650674446589. The next prime is 378650674446679. The reversal of 378650674446631 is 136644476056873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378650674446631 - 2¹⁷ = 378650674315559 is a prime.

It is a super-2 number, since 2×378650674446631² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378650674446431) 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, 431265004626 + ... + 431265005503.

It is an arithmetic number, because the mean of its divisors is an integer number (94878301114300).

Almost surely, 2^{378650674446631} is an apocalyptic number.

378650674446631 is a deficient number, since it is larger than the sum of its proper divisors (862530010569).

378650674446631 is an equidigital number, since it uses as much as digits as its factorization.

378650674446631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862530010568.

The product of its (nonzero) digits is 1463132160, while the sum is 70.

The spelling of 378650674446631 in words is "three hundred seventy-eight trillion, six hundred fifty billion, six hundred seventy-four million, four hundred forty-six thousand, six hundred thirty-one".