47165256768 has 112 divisors (see below), whose sum is σ = 143707981824. Its totient is φ = 13372869120.

The previous prime is 47165256713. The next prime is 47165256781. The reversal of 47165256768 is 86765256174.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×47165256768² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42121 + ... + 310007.

Almost surely, 2^47165256768 is an apocalyptic number.

47165256768 is a gapful number since it is divisible by the number (48) 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 47165256768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71853990912).

47165256768 is an abundant number, since it is smaller than the sum of its proper divisors (96542725056).

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

47165256768 is a wasteful number, since it uses less digits than its factorization.

47165256768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268040 (or 268030 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The spelling of 47165256768 in words is "forty-seven billion, one hundred sixty-five million, two hundred fifty-six thousand, seven hundred sixty-eight".