79000621494 has 32 divisors (see below), whose sum is σ = 167416873056. Its totient is φ = 24766517760.

The previous prime is 79000621481. The next prime is 79000621499. The reversal of 79000621494 is 49412600097.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79000621499) 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 15 ways as a sum of consecutive naturals, for example, 139557 + ... + 421280.

It is an arithmetic number, because the mean of its divisors is an integer number (5231777283).

Almost surely, 2^79000621494 is an apocalyptic number.

79000621494 is an abundant number, since it is smaller than the sum of its proper divisors (88416251562).

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

79000621494 is a wasteful number, since it uses less digits than its factorization.

79000621494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562240.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 79000621494 in words is "seventy-nine billion, six hundred twenty-one thousand, four hundred ninety-four".