878950909407 has 32 divisors (see below), whose sum is σ = 1244823622848. Its totient is φ = 549743394816.

The previous prime is 878950909391. The next prime is 878950909429. The reversal of 878950909407 is 704909059878.

It is not a de Polignac number, because 878950909407 - 2⁴ = 878950909391 is a prime.

It is a super-2 number, since 2×878950909407² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878950909457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65038083 + ... + 65051595.

It is an arithmetic number, because the mean of its divisors is an integer number (38900738214).

Almost surely, 2^878950909407 is an apocalyptic number.

878950909407 is a deficient number, since it is larger than the sum of its proper divisors (365872713441).

878950909407 is a wasteful number, since it uses less digits than its factorization.

878950909407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17499.

The product of its (nonzero) digits is 45722880, while the sum is 66.

The spelling of 878950909407 in words is "eight hundred seventy-eight billion, nine hundred fifty million, nine hundred nine thousand, four hundred seven".