878045551007 has 4 divisors (see below), whose sum is σ = 886739071416. Its totient is φ = 869352030600.

The previous prime is 878045550973. The next prime is 878045551057. The reversal of 878045551007 is 700155540878.

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 878045551007 - 2¹⁸ = 878045288863 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 (878045551057) 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, 4346760053 + ... + 4346760254.

It is an arithmetic number, because the mean of its divisors is an integer number (221684767854).

Almost surely, 2^878045551007 is an apocalyptic number.

878045551007 is a deficient number, since it is larger than the sum of its proper divisors (8693520409).

878045551007 is a wasteful number, since it uses less digits than its factorization.

878045551007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8693520408.

The product of its (nonzero) digits is 1568000, while the sum is 50.

The spelling of 878045551007 in words is "eight hundred seventy-eight billion, forty-five million, five hundred fifty-one thousand, seven".