947144038989552 has 120 divisors (see below), whose sum is σ = 2665646382712320. Its totient is φ = 289449791038080.

The previous prime is 947144038989541. The next prime is 947144038989559. The reversal of 947144038989552 is 255989830441749.

It is a super-2 number, since 2×947144038989552² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947144038989559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 881071602 + ... + 882145937.

It is an arithmetic number, because the mean of its divisors is an integer number (22213719855936).

Almost surely, 2^{947144038989552} is an apocalyptic number.

It is an amenable number.

947144038989552 is an abundant number, since it is smaller than the sum of its proper divisors (1718502343722768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

947144038989552 is a wasteful number, since it uses less digits than its factorization.

947144038989552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763217619 (or 1763217594 counting only the distinct ones).

The product of its (nonzero) digits is 3135283200, while the sum is 78.

The spelling of 947144038989552 in words is "nine hundred forty-seven trillion, one hundred forty-four billion, thirty-eight million, nine hundred eighty-nine thousand, five hundred fifty-two".