721674474376462 has 4 divisors (see below), whose sum is σ = 1082511711564696. Its totient is φ = 360837237188230.

The previous prime is 721674474376439. The next prime is 721674474376507. The reversal of 721674474376462 is 264673474476127.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 721674474376391 and 721674474376400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180418618594114 + ... + 180418618594117.

It is an arithmetic number, because the mean of its divisors is an integer number (270627927891174).

Almost surely, 2^{721674474376462} is an apocalyptic number.

721674474376462 is a deficient number, since it is larger than the sum of its proper divisors (360837237188234).

721674474376462 is a wasteful number, since it uses less digits than its factorization.

721674474376462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360837237188233.

The product of its digits is 1593188352, while the sum is 70.

The spelling of 721674474376462 in words is "seven hundred twenty-one trillion, six hundred seventy-four billion, four hundred seventy-four million, three hundred seventy-six thousand, four hundred sixty-two".