746147545421 has 16 divisors (see below), whose sum is σ = 786906316800. Its totient is φ = 706113234288.

The previous prime is 746147545393. The next prime is 746147545463. The reversal of 746147545421 is 124545741647.

746147545421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-746147545421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 746147545421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746147545021) 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, 692870 + ... + 1404408.

It is an arithmetic number, because the mean of its divisors is an integer number (49181644800).

Almost surely, 2^746147545421 is an apocalyptic number.

It is an amenable number.

746147545421 is a deficient number, since it is larger than the sum of its proper divisors (40758771379).

746147545421 is a wasteful number, since it uses less digits than its factorization.

746147545421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712048.

The product of its digits is 3763200, while the sum is 50.

The spelling of 746147545421 in words is "seven hundred forty-six billion, one hundred forty-seven million, five hundred forty-five thousand, four hundred twenty-one".