78408125498 has 8 divisors (see below), whose sum is σ = 117733816992. Its totient is φ = 39163519836.

The previous prime is 78408125491. The next prime is 78408125539. The reversal of 78408125498 is 89452180487.

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

It is a super-3 number, since 3×78408125498³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (78408125491) 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, 20269040 + ... + 20272907.

It is an arithmetic number, because the mean of its divisors is an integer number (14716727124).

Almost surely, 2^78408125498 is an apocalyptic number.

78408125498 is a deficient number, since it is larger than the sum of its proper divisors (39325691494).

78408125498 is a wasteful number, since it uses less digits than its factorization.

78408125498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40542916.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 78408125498 in words is "seventy-eight billion, four hundred eight million, one hundred twenty-five thousand, four hundred ninety-eight".