3812661456 has 20 divisors (see below), whose sum is σ = 9849375552. Its totient is φ = 1270887136.

The previous prime is 3812661439. The next prime is 3812661569. The reversal of 3812661456 is 6541662183.

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, 39715176 + ... + 39715271.

Almost surely, 2^3812661456 is an apocalyptic number.

It is an amenable number.

3812661456 is an abundant number, since it is smaller than the sum of its proper divisors (6036714096).

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

3812661456 is a wasteful number, since it uses less digits than its factorization.

3812661456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79430458 (or 79430452 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 3812661456 is about 61746.7525947721. The cubic root of 3812661456 is about 1562.2219946651.

The spelling of 3812661456 in words is "three billion, eight hundred twelve million, six hundred sixty-one thousand, four hundred fifty-six".