79416781425 has 48 divisors (see below), whose sum is σ = 147230160000. Its totient is φ = 41966994240.

The previous prime is 79416781357. The next prime is 79416781427. The reversal of 79416781425 is 52418761497.

It is not a de Polignac number, because 79416781425 - 2¹⁷ = 79416650353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79416781427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466125 + ... + 613274.

It is an arithmetic number, because the mean of its divisors is an integer number (3067295000).

Almost surely, 2^79416781425 is an apocalyptic number.

79416781425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79416781425 is a deficient number, since it is larger than the sum of its proper divisors (67813378575).

79416781425 is a wasteful number, since it uses less digits than its factorization.

79416781425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079527 (or 1079516 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 79416781425 in words is "seventy-nine billion, four hundred sixteen million, seven hundred eighty-one thousand, four hundred twenty-five".