380402518815 has 192 divisors, whose sum is σ = 780038138880. Its totient is φ = 169682688000.

The previous prime is 380402518807. The next prime is 380402518817. The reversal of 380402518815 is 518815204083.

380402518815 is a `hidden beast` number, since 3 + 80 + 40 + 2 + 518 + 8 + 15 = 666.

It is not a de Polignac number, because 380402518815 - 2³ = 380402518807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380402518817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 25300350 + ... + 25315380.

It is an arithmetic number, because the mean of its divisors is an integer number (4062698640).

Almost surely, 2^380402518815 is an apocalyptic number.

380402518815 is an abundant number, since it is smaller than the sum of its proper divisors (399635620065).

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

380402518815 is a wasteful number, since it uses less digits than its factorization.

380402518815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15166 (or 15163 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 380402518815 in words is "three hundred eighty billion, four hundred two million, five hundred eighteen thousand, eight hundred fifteen".