283749351421 has 16 divisors (see below), whose sum is σ = 291704832000. Its totient is φ = 275875454448.

The previous prime is 283749351343. The next prime is 283749351433. The reversal of 283749351421 is 124153947382.

It is a cyclic number.

It is not a de Polignac number, because 283749351421 - 2²⁵ = 283715796989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283749351481) 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, 18371020 + ... + 18386458.

It is an arithmetic number, because the mean of its divisors is an integer number (18231552000).

Almost surely, 2^283749351421 is an apocalyptic number.

It is an amenable number.

283749351421 is a deficient number, since it is larger than the sum of its proper divisors (7955480579).

283749351421 is a wasteful number, since it uses less digits than its factorization.

283749351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18048.

The product of its digits is 1451520, while the sum is 49.

The spelling of 283749351421 in words is "two hundred eighty-three billion, seven hundred forty-nine million, three hundred fifty-one thousand, four hundred twenty-one".