19252660845 has 32 divisors (see below), whose sum is σ = 34512888960. Its totient is φ = 9082333440.

The previous prime is 19252660753. The next prime is 19252660873. The reversal of 19252660845 is 54806625291.

It is not a de Polignac number, because 19252660845 - 2¹² = 19252656749 is a prime.

It is a super-2 number, since 2×19252660845² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19252660794 and 19252660803.

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, 1570690 + ... + 1582899.

It is an arithmetic number, because the mean of its divisors is an integer number (1078527780).

Almost surely, 2^19252660845 is an apocalyptic number.

19252660845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19252660845 is a deficient number, since it is larger than the sum of its proper divisors (15260228115).

19252660845 is a wasteful number, since it uses less digits than its factorization.

19252660845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153645.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 19252660845 in words is "nineteen billion, two hundred fifty-two million, six hundred sixty thousand, eight hundred forty-five".