20193536372 has 12 divisors (see below), whose sum is σ = 35382376260. Its totient is φ = 10084286016.

The previous prime is 20193536351. The next prime is 20193536381. The reversal of 20193536372 is 27363539102.

It can be written as a sum of positive squares in 2 ways, for example, as 12171826276 + 8021710096 = 110326^2 + 89564^2 .

It is a super-2 number, since 2×20193536372² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3116903 + ... + 3123374.

It is an arithmetic number, because the mean of its divisors is an integer number (2948531355).

Almost surely, 2^20193536372 is an apocalyptic number.

It is an amenable number.

20193536372 is a deficient number, since it is larger than the sum of its proper divisors (15188839888).

20193536372 is a wasteful number, since it uses less digits than its factorization.

20193536372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241090 (or 6241088 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 41.

The spelling of 20193536372 in words is "twenty billion, one hundred ninety-three million, five hundred thirty-six thousand, three hundred seventy-two".