978701587007 has 4 divisors (see below), whose sum is σ = 979387433976. Its totient is φ = 978015740040.

The previous prime is 978701587001. The next prime is 978701587009. The reversal of 978701587007 is 700785107879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 978701587007 - 2¹⁶ = 978701521471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978701587001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342921344 + ... + 342924197.

It is an arithmetic number, because the mean of its divisors is an integer number (244846858494).

Almost surely, 2^978701587007 is an apocalyptic number.

978701587007 is a deficient number, since it is larger than the sum of its proper divisors (685846969).

978701587007 is a wasteful number, since it uses less digits than its factorization.

978701587007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685846968.

The product of its (nonzero) digits is 6914880, while the sum is 59.

The spelling of 978701587007 in words is "nine hundred seventy-eight billion, seven hundred one million, five hundred eighty-seven thousand, seven".