39222779904 has 896 divisors, whose sum is σ = 150985728000. Its totient is φ = 9970974720.

The previous prime is 39222779881. The next prime is 39222779963. The reversal of 39222779904 is 40997722293.

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 834527209 + ... + 834527255.

Almost surely, 2^39222779904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39222779904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75492864000).

39222779904 is an abundant number, since it is smaller than the sum of its proper divisors (111762948096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39222779904 is an equidigital number, since it uses as much as digits as its factorization.

39222779904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 39222779904 in words is "thirty-nine billion, two hundred twenty-two million, seven hundred seventy-nine thousand, nine hundred four".