7985390998146 has 16 divisors (see below), whose sum is σ = 16272117506304. Its totient is φ = 2611574414384.

The previous prime is 7985390998139. The next prime is 7985390998177. The reversal of 7985390998146 is 6418990935897.

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, 12555645906 + ... + 12555646541.

It is an arithmetic number, because the mean of its divisors is an integer number (1017007344144).

Almost surely, 2^{7985390998146} is an apocalyptic number.

7985390998146 is an abundant number, since it is smaller than the sum of its proper divisors (8286726508158).

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

7985390998146 is a wasteful number, since it uses less digits than its factorization.

7985390998146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25111292505.

The product of its (nonzero) digits is 1058158080, while the sum is 78.

The spelling of 7985390998146 in words is "seven trillion, nine hundred eighty-five billion, three hundred ninety million, nine hundred ninety-eight thousand, one hundred forty-six".