7861922491242 has 16 divisors (see below), whose sum is σ = 15724824183072. Its totient is φ = 2620477630320.

The previous prime is 7861922491219. The next prime is 7861922491259. The reversal of 7861922491242 is 2421942291687.

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, 40695628 + ... + 40888359.

It is an arithmetic number, because the mean of its divisors is an integer number (982801511442).

Almost surely, 2^{7861922491242} is an apocalyptic number.

7861922491242 is an abundant number, since it is smaller than the sum of its proper divisors (7862901691830).

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

7861922491242 is a wasteful number, since it uses less digits than its factorization.

7861922491242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81600053.

The product of its digits is 6967296, while the sum is 57.

The spelling of 7861922491242 in words is "seven trillion, eight hundred sixty-one billion, nine hundred twenty-two million, four hundred ninety-one thousand, two hundred forty-two".