715255777078 has 8 divisors (see below), whose sum is σ = 1073574516168. Its totient is φ = 357397605024.

The previous prime is 715255777073. The next prime is 715255777133. The reversal of 715255777078 is 870777552517.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715255777073) 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, 115137876 + ... + 115144087.

It is an arithmetic number, because the mean of its divisors is an integer number (134196814521).

Almost surely, 2^715255777078 is an apocalyptic number.

715255777078 is a deficient number, since it is larger than the sum of its proper divisors (358318739090).

715255777078 is a wasteful number, since it uses less digits than its factorization.

715255777078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230283518.

The product of its (nonzero) digits is 33614000, while the sum is 61.

The spelling of 715255777078 in words is "seven hundred fifteen billion, two hundred fifty-five million, seven hundred seventy-seven thousand, seventy-eight".