1642013963 has 8 divisors (see below), whose sum is σ = 1664272848. Its totient is φ = 1619864064.

The previous prime is 1642013927. The next prime is 1642013977. The reversal of 1642013963 is 3693102461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1642013963 - 2⁸ = 1642013707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642013903) 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, 3320 + ... + 57402.

It is an arithmetic number, because the mean of its divisors is an integer number (208034106).

Almost surely, 2^1642013963 is an apocalyptic number.

1642013963 is a deficient number, since it is larger than the sum of its proper divisors (22258885).

1642013963 is an equidigital number, since it uses as much as digits as its factorization.

1642013963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54493.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 1642013963 is about 40521.7714691744. The cubic root of 1642013963 is about 1179.7562368730.

The spelling of 1642013963 in words is "one billion, six hundred forty-two million, thirteen thousand, nine hundred sixty-three".