7855219078002 has 16 divisors (see below), whose sum is σ = 17456042395680. Its totient is φ = 2618406359316.

The previous prime is 7855219077949. The next prime is 7855219078019. The reversal of 7855219078002 is 2008709125587.

7855219078002 is a `hidden beast` number, since 7 + 8 + 552 + 1 + 9 + 0 + 7 + 80 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 145467019963 = 7855219078002 / (7 + 8 + 5 + 5 + 2 + 1 + 9 + 0 + 7 + 8 + 0 + 0 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 7855219078002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72733509928 + ... + 72733510035.

It is an arithmetic number, because the mean of its divisors is an integer number (1091002649730).

Almost surely, 2^{7855219078002} is an apocalyptic number.

7855219078002 is an abundant number, since it is smaller than the sum of its proper divisors (9600823317678).

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

7855219078002 is a wasteful number, since it uses less digits than its factorization.

7855219078002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145467019974 (or 145467019968 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 7855219078002 in words is "seven trillion, eight hundred fifty-five billion, two hundred nineteen million, seventy-eight thousand, two".