39220981989 has 16 divisors (see below), whose sum is σ = 60033318912. Its totient is φ = 22311484848.

The previous prime is 39220981973. The next prime is 39220982027. The reversal of 39220981989 is 98918902293.

It is not a de Polignac number, because 39220981989 - 2⁴ = 39220981973 is a prime.

It is a super-2 number, since 2×39220981989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39220901989) 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, 4182909 + ... + 4192274.

It is an arithmetic number, because the mean of its divisors is an integer number (3752082432).

Almost surely, 2^39220981989 is an apocalyptic number.

It is an amenable number.

39220981989 is a deficient number, since it is larger than the sum of its proper divisors (20812336923).

39220981989 is a wasteful number, since it uses less digits than its factorization.

39220981989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375416.

The product of its (nonzero) digits is 5038848, while the sum is 60.

The spelling of 39220981989 in words is "thirty-nine billion, two hundred twenty million, nine hundred eighty-one thousand, nine hundred eighty-nine".