381405785038 has 32 divisors (see below), whose sum is σ = 628426265760. Its totient is φ = 172804853760.

The previous prime is 381405784997. The next prime is 381405785081. The reversal of 381405785038 is 830587504183.

It is a happy number.

It is a super-2 number, since 2×381405785038² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199848 + ... + 895963.

It is an arithmetic number, because the mean of its divisors is an integer number (19638320805).

Almost surely, 2^381405785038 is an apocalyptic number.

381405785038 is a deficient number, since it is larger than the sum of its proper divisors (247020480722).

381405785038 is a wasteful number, since it uses less digits than its factorization.

381405785038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096212.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 381405785038 in words is "three hundred eighty-one billion, four hundred five million, seven hundred eighty-five thousand, thirty-eight".