746837359421 has 4 divisors (see below), whose sum is σ = 746960342172. Its totient is φ = 746714376672.

The previous prime is 746837359403. The next prime is 746837359447. The reversal of 746837359421 is 124953738647.

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 419922144196 + 326915215225 = 648014^2 + 571765^2 .

It is a cyclic number.

It is not a de Polignac number, because 746837359421 - 2¹⁴ = 746837343037 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 (746837359321) 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, 61482266 + ... + 61494411.

It is an arithmetic number, because the mean of its divisors is an integer number (186740085543).

Almost surely, 2^746837359421 is an apocalyptic number.

It is an amenable number.

746837359421 is a deficient number, since it is larger than the sum of its proper divisors (122982751).

746837359421 is a wasteful number, since it uses less digits than its factorization.

746837359421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122982750.

The product of its digits is 30481920, while the sum is 59.

The spelling of 746837359421 in words is "seven hundred forty-six billion, eight hundred thirty-seven million, three hundred fifty-nine thousand, four hundred twenty-one".