79748193155 has 8 divisors (see below), whose sum is σ = 98997757200. Its totient is φ = 61598604256.

The previous prime is 79748193103. The next prime is 79748193157. The reversal of 79748193155 is 55139184797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79748193155 is a prime.

It is a super-2 number, since 2×79748193155² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79748193094 and 79748193103.

It is not an unprimeable number, because it can be changed into a prime (79748193157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274993625 + ... + 274993914.

It is an arithmetic number, because the mean of its divisors is an integer number (12374719650).

Almost surely, 2^79748193155 is an apocalyptic number.

79748193155 is a deficient number, since it is larger than the sum of its proper divisors (19249564045).

79748193155 is a wasteful number, since it uses less digits than its factorization.

79748193155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549987573.

The product of its digits is 9525600, while the sum is 59.

The spelling of 79748193155 in words is "seventy-nine billion, seven hundred forty-eight million, one hundred ninety-three thousand, one hundred fifty-five".