381379156040 has 64 divisors (see below), whose sum is σ = 905218156800. Its totient is φ = 144210350592.

The previous prime is 381379156031. The next prime is 381379156091. The reversal of 381379156040 is 40651973183.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190037 + ... + 893796.

It is an arithmetic number, because the mean of its divisors is an integer number (14144033700).

Almost surely, 2^381379156040 is an apocalyptic number.

It is an amenable number.

381379156040 is an abundant number, since it is smaller than the sum of its proper divisors (523839000760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381379156040 is a wasteful number, since it uses less digits than its factorization.

381379156040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084326 (or 1084322 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 381379156040 in words is "three hundred eighty-one billion, three hundred seventy-nine million, one hundred fifty-six thousand, forty".