674021051440 has 160 divisors (see below), whose sum is σ = 1752778440000. Its totient is φ = 238913126400.

The previous prime is 674021051359. The next prime is 674021051471. The reversal of 674021051440 is 44150120476.

It is a super-3 number, since 3×674021051440³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 674021051396 and 674021051405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45056442 + ... + 45071398.

It is an arithmetic number, because the mean of its divisors is an integer number (10954865250).

Almost surely, 2^674021051440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674021051440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876389220000).

674021051440 is an abundant number, since it is smaller than the sum of its proper divisors (1078757388560).

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

674021051440 is a wasteful number, since it uses less digits than its factorization.

674021051440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16271 (or 16265 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 674021051440 in words is "six hundred seventy-four billion, twenty-one million, fifty-one thousand, four hundred forty".