947019648971 has 8 divisors (see below), whose sum is σ = 1033179212784. Its totient is φ = 860871229920.

The previous prime is 947019648937. The next prime is 947019648973. The reversal of 947019648971 is 179846910749.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947019648971 is a prime.

It is a super-2 number, since 2×947019648971² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947019648898 and 947019648907.

It is not an unprimeable number, because it can be changed into a prime (947019648973) 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, 2608016 + ... + 2948861.

It is an arithmetic number, because the mean of its divisors is an integer number (129147401598).

Almost surely, 2^947019648971 is an apocalyptic number.

947019648971 is a deficient number, since it is larger than the sum of its proper divisors (86159563813).

947019648971 is a wasteful number, since it uses less digits than its factorization.

947019648971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572381.

The product of its (nonzero) digits is 27433728, while the sum is 65.

The spelling of 947019648971 in words is "nine hundred forty-seven billion, nineteen million, six hundred forty-eight thousand, nine hundred seventy-one".