20192487748 has 12 divisors (see below), whose sum is σ = 35574014700. Its totient is φ = 10028483552.

The previous prime is 20192487713. The next prime is 20192487797. The reversal of 20192487748 is 84778429102.

It can be written as a sum of positive squares in 2 ways, for example, as 8022426624 + 12170061124 = 89568^2 + 110318^2 .

It is a super-2 number, since 2×20192487748² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20192487695 and 20192487704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16939411 + ... + 16940602.

It is an arithmetic number, because the mean of its divisors is an integer number (2964501225).

Almost surely, 2^20192487748 is an apocalyptic number.

It is an amenable number.

20192487748 is a deficient number, since it is larger than the sum of its proper divisors (15381526952).

20192487748 is a wasteful number, since it uses less digits than its factorization.

20192487748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880166 (or 33880164 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 20192487748 in words is "twenty billion, one hundred ninety-two million, four hundred eighty-seven thousand, seven hundred forty-eight".