1426643615 has 16 divisors (see below), whose sum is σ = 1722809088. Its totient is φ = 1134110976.

The previous prime is 1426643527. The next prime is 1426643639. The reversal of 1426643615 is 5163466241.

It is a cyclic number.

It is not a de Polignac number, because 1426643615 - 2²⁴ = 1409866399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954809 + ... + 956301.

It is an arithmetic number, because the mean of its divisors is an integer number (107675568).

Almost surely, 2^1426643615 is an apocalyptic number.

1426643615 is a deficient number, since it is larger than the sum of its proper divisors (296165473).

1426643615 is a wasteful number, since it uses less digits than its factorization.

1426643615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578.

The product of its digits is 103680, while the sum is 38.

The square root of 1426643615 is about 37770.9361149548. The cubic root of 1426643615 is about 1125.7410399986.

The spelling of 1426643615 in words is "one billion, four hundred twenty-six million, six hundred forty-three thousand, six hundred fifteen".