39752166481 has 16 divisors (see below), whose sum is σ = 41943702528. Its totient is φ = 37622145600.

The previous prime is 39752166413. The next prime is 39752166497. The reversal of 39752166481 is 18466125793.

It is not a de Polignac number, because 39752166481 - 2¹¹ = 39752164433 is a prime.

It is a super-2 number, since 2×39752166481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39752166781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472075 + ... + 549871.

It is an arithmetic number, because the mean of its divisors is an integer number (2621481408).

Almost surely, 2^39752166481 is an apocalyptic number.

39752166481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39752166481 is a deficient number, since it is larger than the sum of its proper divisors (2191536047).

39752166481 is a wasteful number, since it uses less digits than its factorization.

39752166481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78192.

The product of its digits is 2177280, while the sum is 52.

The spelling of 39752166481 in words is "thirty-nine billion, seven hundred fifty-two million, one hundred sixty-six thousand, four hundred eighty-one".