83572037572 has 6 divisors (see below), whose sum is σ = 146251065758. Its totient is φ = 41786018784.

The previous prime is 83572037561. The next prime is 83572037599. The reversal of 83572037572 is 27573027538.

It can be written as a sum of positive squares in only one way, i.e., 45790008196 + 37782029376 = 213986^2 + 194376^2 .

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 as a sum of consecutive naturals, namely, 10446504693 + ... + 10446504700.

Almost surely, 2^83572037572 is an apocalyptic number.

It is an amenable number.

83572037572 is a deficient number, since it is larger than the sum of its proper divisors (62679028186).

83572037572 is a wasteful number, since it uses less digits than its factorization.

83572037572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20893009397 (or 20893009395 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 83572037572 in words is "eighty-three billion, five hundred seventy-two million, thirty-seven thousand, five hundred seventy-two".