47691972265536 has 448 divisors, whose sum is σ = 145304692473600. Its totient is φ = 15522943887360.

The previous prime is 47691972265523. The next prime is 47691972265547. The reversal of 47691972265536 is 63556227919674.

47691972265536 is a `hidden beast` number, since 4 + 7 + 6 + 9 + 1 + 9 + 7 + 22 + 65 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1565246910 + ... + 1565277378.

Almost surely, 2^{47691972265536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47691972265536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72652346236800).

47691972265536 is an abundant number, since it is smaller than the sum of its proper divisors (97612720208064).

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

47691972265536 is an equidigital number, since it uses as much as digits as its factorization.

47691972265536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30766 (or 30738 counting only the distinct ones).

The product of its digits is 1028764800, while the sum is 72.

The spelling of 47691972265536 in words is "forty-seven trillion, six hundred ninety-one billion, nine hundred seventy-two million, two hundred sixty-five thousand, five hundred thirty-six".