674242745840 has 40 divisors (see below), whose sum is σ = 1567886532768. Its totient is φ = 269650277120.

The previous prime is 674242745837. The next prime is 674242745857. The reversal of 674242745840 is 48547242476.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266051 + ... + 1191330.

Almost surely, 2^674242745840 is an apocalyptic number.

It is an amenable number.

674242745840 is an abundant number, since it is smaller than the sum of its proper divisors (893643786928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674242745840 is a wasteful number, since it uses less digits than its factorization.

674242745840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463177 (or 1463171 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 53.

The spelling of 674242745840 in words is "six hundred seventy-four billion, two hundred forty-two million, seven hundred forty-five thousand, eight hundred forty".