947677001547 has 6 divisors (see below), whose sum is σ = 1263571583572. Its totient is φ = 631783543612.

The previous prime is 947677001527. The next prime is 947677001563. The reversal of 947677001547 is 745100776749.

It is not a de Polignac number, because 947677001547 - 2²² = 947672807243 is a prime.

It is a super-2 number, since 2×947677001547² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (947677001527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1405108 + ... + 1967150.

Almost surely, 2^947677001547 is an apocalyptic number.

947677001547 is a deficient number, since it is larger than the sum of its proper divisors (315894582025).

947677001547 is an frugal number, since it uses more digits than its factorization.

947677001547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124089 (or 562046 counting only the distinct ones).

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 947677001547 in words is "nine hundred forty-seven billion, six hundred seventy-seven million, one thousand, five hundred forty-seven".