78372529474 has 8 divisors (see below), whose sum is σ = 118337329728. Its totient is φ = 38926752900.

The previous prime is 78372529451. The next prime is 78372529531. The reversal of 78372529474 is 47492527387.

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

It is a super-2 number, since 2×78372529474² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129755542 + ... + 129756145.

It is an arithmetic number, because the mean of its divisors is an integer number (14792166216).

Almost surely, 2^78372529474 is an apocalyptic number.

78372529474 is a deficient number, since it is larger than the sum of its proper divisors (39964800254).

78372529474 is a wasteful number, since it uses less digits than its factorization.

78372529474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259511840.

The product of its digits is 23708160, while the sum is 58.

The spelling of 78372529474 in words is "seventy-eight billion, three hundred seventy-two million, five hundred twenty-nine thousand, four hundred seventy-four".