39700298881 has 4 divisors (see below), whose sum is σ = 39729047764. Its totient is φ = 39671550000.

The previous prime is 39700298861. The next prime is 39700298899. The reversal of 39700298881 is 18889200793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18889200793 = 199 ⋅94920607.

It can be written as a sum of positive squares in 2 ways, for example, as 29467155600 + 10233143281 = 171660^2 + 101159^2 .

It is a cyclic number.

It is not a de Polignac number, because 39700298881 - 2⁷ = 39700298753 is a prime.

It is a super-2 number, since 2×39700298881² (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 (39700298861) by changing a digit.

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, 14372370 + ... + 14375131.

It is an arithmetic number, because the mean of its divisors is an integer number (9932261941).

Almost surely, 2^39700298881 is an apocalyptic number.

It is an amenable number.

39700298881 is a deficient number, since it is larger than the sum of its proper divisors (28748883).

39700298881 is a wasteful number, since it uses less digits than its factorization.

39700298881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28748882.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 39700298881 in words is "thirty-nine billion, seven hundred million, two hundred ninety-eight thousand, eight hundred eighty-one".