20988377037 has 48 divisors (see below), whose sum is σ = 32425848000. Its totient is φ = 13044022272.

The previous prime is 20988377023. The next prime is 20988377057. The reversal of 20988377037 is 73077388902.

It is not a de Polignac number, because 20988377037 - 2⁷ = 20988376909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20988377017) 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 47 ways as a sum of consecutive naturals, for example, 2965539 + ... + 2972607.

It is an arithmetic number, because the mean of its divisors is an integer number (675538500).

Almost surely, 2^20988377037 is an apocalyptic number.

It is an amenable number.

20988377037 is a deficient number, since it is larger than the sum of its proper divisors (11437470963).

20988377037 is a wasteful number, since it uses less digits than its factorization.

20988377037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370 (or 7367 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 20988377037 in words is "twenty billion, nine hundred eighty-eight million, three hundred seventy-seven thousand, thirty-seven".