673407400737 has 16 divisors (see below), whose sum is σ = 933969516480. Its totient is φ = 431062833600.

The previous prime is 673407400723. The next prime is 673407400747. The reversal of 673407400737 is 737004704376.

673407400737 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 673407400737 - 2⁷ = 673407400609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673407400717) 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, 21366339 + ... + 21397832.

It is an arithmetic number, because the mean of its divisors is an integer number (58373094780).

Almost surely, 2^673407400737 is an apocalyptic number.

It is an amenable number.

673407400737 is a deficient number, since it is larger than the sum of its proper divisors (260562115743).

673407400737 is a wasteful number, since it uses less digits than its factorization.

673407400737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42764384.

The product of its (nonzero) digits is 2074464, while the sum is 48.

The spelling of 673407400737 in words is "six hundred seventy-three billion, four hundred seven million, four hundred thousand, seven hundred thirty-seven".