21760627326731 has 16 divisors (see below), whose sum is σ = 22752765644544. Its totient is φ = 20772355917984.

The previous prime is 21760627326677. The next prime is 21760627326733. The reversal of 21760627326731 is 13762372606712.

It is a cyclic number.

It is not a de Polignac number, because 21760627326731 - 2⁶ = 21760627326667 is a prime.

It is a super-2 number, since 2×21760627326731² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21760627326733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30086120 + ... + 30800906.

It is an arithmetic number, because the mean of its divisors is an integer number (1422047852784).

Almost surely, 2^{21760627326731} is an apocalyptic number.

21760627326731 is a deficient number, since it is larger than the sum of its proper divisors (992138317813).

21760627326731 is a wasteful number, since it uses less digits than its factorization.

21760627326731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717490.

The product of its (nonzero) digits is 5334336, while the sum is 53.

The spelling of 21760627326731 in words is "twenty-one trillion, seven hundred sixty billion, six hundred twenty-seven million, three hundred twenty-six thousand, seven hundred thirty-one".