19754950772 has 96 divisors (see below), whose sum is σ = 36689318400. Its totient is φ = 9300096000.

The previous prime is 19754950727. The next prime is 19754950799. The reversal of 19754950772 is 27705945791.

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, 142121879 + ... + 142122017.

It is an arithmetic number, because the mean of its divisors is an integer number (382180400).

Almost surely, 2^19754950772 is an apocalyptic number.

It is an amenable number.

19754950772 is a deficient number, since it is larger than the sum of its proper divisors (16934367628).

19754950772 is a wasteful number, since it uses less digits than its factorization.

19754950772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 56.

The spelling of 19754950772 in words is "nineteen billion, seven hundred fifty-four million, nine hundred fifty thousand, seven hundred seventy-two".