1642880807954 has 8 divisors (see below), whose sum is σ = 2464381371648. Its totient is φ = 821420350740.

The previous prime is 1642880807951. The next prime is 1642880807977. The reversal of 1642880807954 is 4597080882461.

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

It is a super-2 number, since 2×1642880807954² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1642880807951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9924002 + ... + 10088189.

It is an arithmetic number, because the mean of its divisors is an integer number (308047671456).

Almost surely, 2^{1642880807954} is an apocalyptic number.

1642880807954 is a deficient number, since it is larger than the sum of its proper divisors (821500563694).

1642880807954 is a wasteful number, since it uses less digits than its factorization.

1642880807954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20053240.

The product of its (nonzero) digits is 30965760, while the sum is 62.

The spelling of 1642880807954 in words is "one trillion, six hundred forty-two billion, eight hundred eighty million, eight hundred seven thousand, nine hundred fifty-four".