721545400414 has 8 divisors (see below), whose sum is σ = 1139282211240. Its totient is φ = 341784663336.

The previous prime is 721545400403. The next prime is 721545400421. The reversal of 721545400414 is 414004545127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9494018389 + ... + 9494018464.

It is an arithmetic number, because the mean of its divisors is an integer number (142410276405).

Almost surely, 2^721545400414 is an apocalyptic number.

721545400414 is a deficient number, since it is larger than the sum of its proper divisors (417736810826).

721545400414 is a wasteful number, since it uses less digits than its factorization.

721545400414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18988036874.

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 721545400414 in words is "seven hundred twenty-one billion, five hundred forty-five million, four hundred thousand, four hundred fourteen".