381261798974 has 16 divisors (see below), whose sum is σ = 654047790048. Its totient is φ = 163283880192.

The previous prime is 381261798971. The next prime is 381261798977. The reversal of 381261798974 is 479897162183.

It is an interprime number because it is at equal distance from previous prime (381261798971) and next prime (381261798977).

It is a self number, because there is not a number n which added to its sum of digits gives 381261798974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381261798971) 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, 9482027 + ... + 9522150.

It is an arithmetic number, because the mean of its divisors is an integer number (40877986878).

Almost surely, 2^381261798974 is an apocalyptic number.

381261798974 is a deficient number, since it is larger than the sum of its proper divisors (272785991074).

381261798974 is a wasteful number, since it uses less digits than its factorization.

381261798974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19005619.

The product of its digits is 36578304, while the sum is 65.

The spelling of 381261798974 in words is "three hundred eighty-one billion, two hundred sixty-one million, seven hundred ninety-eight thousand, nine hundred seventy-four".