947474640180 has 480 divisors, whose sum is σ = 3078534767616. Its totient is φ = 243830974464.

The previous prime is 947474640173. The next prime is 947474640199. The reversal of 947474640180 is 81046474749.

947474640180 is a `hidden beast` number, since 94 + 7 + 4 + 74 + 6 + 401 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1560913437 + ... + 1560914043.

Almost surely, 2^947474640180 is an apocalyptic number.

947474640180 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 947474640180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539267383808).

947474640180 is an abundant number, since it is smaller than the sum of its proper divisors (2131060127436).

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

947474640180 is a wasteful number, since it uses less digits than its factorization.

947474640180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 947474640180 in words is "nine hundred forty-seven billion, four hundred seventy-four million, six hundred forty thousand, one hundred eighty".