1642001496709 has 16 divisors (see below), whose sum is σ = 1881782784000. Its totient is φ = 1403527819824.

The previous prime is 1642001496643. The next prime is 1642001496721. The reversal of 1642001496709 is 9076941002461.

It is a cyclic number.

It is not a de Polignac number, because 1642001496709 - 2²³ = 1641993108101 is a prime.

It is a super-2 number, since 2×1642001496709² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642001496739) 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, 3587172 + ... + 4018930.

It is an arithmetic number, because the mean of its divisors is an integer number (117611424000).

Almost surely, 2^{1642001496709} is an apocalyptic number.

It is an amenable number.

1642001496709 is a deficient number, since it is larger than the sum of its proper divisors (239781287291).

1642001496709 is an equidigital number, since it uses as much as digits as its factorization.

1642001496709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433272.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 1642001496709 in words is "one trillion, six hundred forty-two billion, one million, four hundred ninety-six thousand, seven hundred nine".