72378525502 has 12 divisors (see below), whose sum is σ = 109698611040. Its totient is φ = 35816168256.

The previous prime is 72378525437. The next prime is 72378525511. The reversal of 72378525502 is 20552587327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1904302 + ... + 1941937.

It is an arithmetic number, because the mean of its divisors is an integer number (9141550920).

Almost surely, 2^72378525502 is an apocalyptic number.

72378525502 is a deficient number, since it is larger than the sum of its proper divisors (37320085538).

72378525502 is an equidigital number, since it uses as much as digits as its factorization.

72378525502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846435 (or 3846338 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 72378525502 in words is "seventy-two billion, three hundred seventy-eight million, five hundred twenty-five thousand, five hundred two".