73064061979 has 4 divisors (see below), whose sum is σ = 73199116240. Its totient is φ = 72929007720.

The previous prime is 73064061901. The next prime is 73064061997. The reversal of 73064061979 is 97916046037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73064061979 - 2²¹ = 73061964827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73064061179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67526319 + ... + 67527400.

It is an arithmetic number, because the mean of its divisors is an integer number (18299779060).

Almost surely, 2^73064061979 is an apocalyptic number.

73064061979 is a deficient number, since it is larger than the sum of its proper divisors (135054261).

73064061979 is a wasteful number, since it uses less digits than its factorization.

73064061979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135054260.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 73064061979 in words is "seventy-three billion, sixty-four million, sixty-one thousand, nine hundred seventy-nine".