381619126026 has 12 divisors (see below), whose sum is σ = 826841439762. Its totient is φ = 127206375336.

The previous prime is 381619126019. The next prime is 381619126073. The reversal of 381619126026 is 620621916183.

381619126026 is a `hidden beast` number, since 3 + 8 + 1 + 619 + 1 + 2 + 6 + 0 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 308581361001 + 73037765025 = 555501^2 + 270255^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10600531261 + ... + 10600531296.

Almost surely, 2^381619126026 is an apocalyptic number.

381619126026 is an abundant number, since it is smaller than the sum of its proper divisors (445222313736).

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

381619126026 is a wasteful number, since it uses less digits than its factorization.

381619126026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201062565 (or 21201062562 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 381619126026 in words is "three hundred eighty-one billion, six hundred nineteen million, one hundred twenty-six thousand, twenty-six".