1612796643 has 8 divisors (see below), whose sum is σ = 2389328400. Its totient is φ = 1075197744.

The previous prime is 1612796641. The next prime is 1612796651. The reversal of 1612796643 is 3466972161.

It is not a de Polignac number, because 1612796643 - 2¹ = 1612796641 is a prime.

It is a super-2 number, since 2×1612796643² = 5202226023344138898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1612796641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29866578 + ... + 29866631.

It is an arithmetic number, because the mean of its divisors is an integer number (298666050).

Almost surely, 2^1612796643 is an apocalyptic number.

1612796643 is a deficient number, since it is larger than the sum of its proper divisors (776531757).

1612796643 is an equidigital number, since it uses as much as digits as its factorization.

1612796643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59733218 (or 59733212 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1612796643 is about 40159.6394779634. The cubic root of 1612796643 is about 1172.7169534418.

The spelling of 1612796643 in words is "one billion, six hundred twelve million, seven hundred ninety-six thousand, six hundred forty-three".