878621257147 has 8 divisors (see below), whose sum is σ = 897350561856. Its totient is φ = 859893420672.

The previous prime is 878621257091. The next prime is 878621257177. The reversal of 878621257147 is 741752126878.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 878621257147 - 2¹⁵ = 878621224379 is a prime.

It is a super-3 number, since 3×878621257147³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 878621257091 and 878621257100.

It is not an unprimeable number, because it can be changed into a prime (878621257177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887773 + ... + 1595425.

It is an arithmetic number, because the mean of its divisors is an integer number (112168820232).

Almost surely, 2^878621257147 is an apocalyptic number.

878621257147 is a deficient number, since it is larger than the sum of its proper divisors (18729304709).

878621257147 is a wasteful number, since it uses less digits than its factorization.

878621257147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734117.

The product of its digits is 10536960, while the sum is 58.

The spelling of 878621257147 in words is "eight hundred seventy-eight billion, six hundred twenty-one million, two hundred fifty-seven thousand, one hundred forty-seven".