47021777705 has 32 divisors (see below), whose sum is σ = 64719767040. Its totient is φ = 32127321600.

The previous prime is 47021777701. The next prime is 47021777713. The reversal of 47021777705 is 50777712074.

It is a happy number.

It is not a de Polignac number, because 47021777705 - 2² = 47021777701 is a prime.

It is a super-2 number, since 2×47021777705² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47021777705.

It is not an unprimeable number, because it can be changed into a prime (47021777701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25023956 + ... + 25025834.

It is an arithmetic number, because the mean of its divisors is an integer number (2022492720).

Almost surely, 2^47021777705 is an apocalyptic number.

It is an amenable number.

47021777705 is a deficient number, since it is larger than the sum of its proper divisors (17697989335).

47021777705 is a wasteful number, since it uses less digits than its factorization.

47021777705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089.

The product of its (nonzero) digits is 672280, while the sum is 47.

The spelling of 47021777705 in words is "forty-seven billion, twenty-one million, seven hundred seventy-seven thousand, seven hundred five".