79420579546 has 288 divisors, whose sum is σ = 166435093440. Its totient is φ = 28252224000.

The previous prime is 79420579541. The next prime is 79420579559. The reversal of 79420579546 is 64597502497.

It is a super-2 number, since 2×79420579546² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (79420579541) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 606263901 + ... + 606264031.

It is an arithmetic number, because the mean of its divisors is an integer number (577899630).

Almost surely, 2^79420579546 is an apocalyptic number.

79420579546 is an abundant number, since it is smaller than the sum of its proper divisors (87014513894).

79420579546 is a wasteful number, since it uses less digits than its factorization.

79420579546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 79420579546 in words is "seventy-nine billion, four hundred twenty million, five hundred seventy-nine thousand, five hundred forty-six".