754964279521 has 2 divisors, whose sum is σ = 754964279522. Its totient is φ = 754964279520.

The previous prime is 754964279507. The next prime is 754964279527. The reversal of 754964279521 is 125972469457.

754964279521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545767815121 + 209196464400 = 738761^2 + 457380^2 .

It is a cyclic number.

It is not a de Polignac number, because 754964279521 - 2⁷ = 754964279393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 754964279521.

It is not a weakly prime, because it can be changed into another prime (754964279527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377482139760 + 377482139761.

It is an arithmetic number, because the mean of its divisors is an integer number (377482139761).

Almost surely, 2^754964279521 is an apocalyptic number.

It is an amenable number.

754964279521 is a deficient number, since it is larger than the sum of its proper divisors (1).

754964279521 is an equidigital number, since it uses as much as digits as its factorization.

754964279521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38102400, while the sum is 61.

The spelling of 754964279521 in words is "seven hundred fifty-four billion, nine hundred sixty-four million, two hundred seventy-nine thousand, five hundred twenty-one".