759797020421 has 4 divisors (see below), whose sum is σ = 760547067852. Its totient is φ = 759046972992.

The previous prime is 759797020391. The next prime is 759797020439. The reversal of 759797020421 is 124020797957.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127913522500 + 631883497921 = 357650^2 + 794911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-759797020421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (759797020441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375022196 + ... + 375024221.

It is an arithmetic number, because the mean of its divisors is an integer number (190136766963).

Almost surely, 2^759797020421 is an apocalyptic number.

It is an amenable number.

759797020421 is a deficient number, since it is larger than the sum of its proper divisors (750047431).

759797020421 is a wasteful number, since it uses less digits than its factorization.

759797020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750047430.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 759797020421 in words is "seven hundred fifty-nine billion, seven hundred ninety-seven million, twenty thousand, four hundred twenty-one".