19342500645 has 32 divisors (see below), whose sum is σ = 33396660864. Its totient is φ = 9503020800.

The previous prime is 19342500629. The next prime is 19342500673. The reversal of 19342500645 is 54600524391.

It is not a de Polignac number, because 19342500645 - 2⁴ = 19342500629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5266 + ... + 196755.

It is an arithmetic number, because the mean of its divisors is an integer number (1043645652).

Almost surely, 2^19342500645 is an apocalyptic number.

19342500645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19342500645 is a deficient number, since it is larger than the sum of its proper divisors (14054160219).

19342500645 is a wasteful number, since it uses less digits than its factorization.

19342500645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202533.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 19342500645 in words is "nineteen billion, three hundred forty-two million, five hundred thousand, six hundred forty-five".