381615785503335 has 32 divisors (see below), whose sum is σ = 678428924359680. Its totient is φ = 203528160562464.

The previous prime is 381615785503243. The next prime is 381615785503399. The reversal of 381615785503335 is 533305587516183.

381615785503335 is a `hidden beast` number, since 3 + 8 + 1 + 6 + 1 + 5 + 78 + 550 + 3 + 3 + 3 + 5 = 666.

It is not a de Polignac number, because 381615785503335 - 2¹⁴ = 381615785486951 is a prime.

It is a super-2 number, since 2×381615785503335² (a number of 30 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 31 ways as a sum of consecutive naturals, for example, 156429502 + ... + 158850308.

It is an arithmetic number, because the mean of its divisors is an integer number (21200903886240).

Almost surely, 2^{381615785503335} is an apocalyptic number.

381615785503335 is a deficient number, since it is larger than the sum of its proper divisors (296813138856345).

381615785503335 is a wasteful number, since it uses less digits than its factorization.

381615785503335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588524 (or 3588518 counting only the distinct ones).

The product of its (nonzero) digits is 136080000, while the sum is 63.

The spelling of 381615785503335 in words is "three hundred eighty-one trillion, six hundred fifteen billion, seven hundred eighty-five million, five hundred three thousand, three hundred thirty-five".