947137387679 has 8 divisors (see below), whose sum is σ = 1082458070688. Its totient is φ = 811820540160.

The previous prime is 947137387639. The next prime is 947137387723. The reversal of 947137387679 is 976783731749.

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

It is not a de Polignac number, because 947137387679 - 2¹⁶ = 947137322143 is a prime.

It is a super-2 number, since 2×947137387679² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947137387619) 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, 408662 + ... + 1435715.

It is an arithmetic number, because the mean of its divisors is an integer number (135307258836).

Almost surely, 2^947137387679 is an apocalyptic number.

947137387679 is a deficient number, since it is larger than the sum of its proper divisors (135320683009).

947137387679 is a wasteful number, since it uses less digits than its factorization.

947137387679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917745.

The product of its digits is 336063168, while the sum is 71.

The spelling of 947137387679 in words is "nine hundred forty-seven billion, one hundred thirty-seven million, three hundred eighty-seven thousand, six hundred seventy-nine".