39955942602 has 20 divisors (see below), whose sum is σ = 89530908786. Its totient is φ = 13318647480.

The previous prime is 39955942597. The next prime is 39955942603. The reversal of 39955942602 is 20624955993.

It is a happy number.

39955942602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28869747921 + 11086194681 = 169911^2 + 105291^2 .

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

It is not an unprimeable number, because it can be changed into a prime (39955942603) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 123320649 + ... + 123320972.

Almost surely, 2^39955942602 is an apocalyptic number.

39955942602 is an abundant number, since it is smaller than the sum of its proper divisors (49574966184).

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

39955942602 is a wasteful number, since it uses less digits than its factorization.

39955942602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246641635 (or 246641626 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 39955942602 in words is "thirty-nine billion, nine hundred fifty-five million, nine hundred forty-two thousand, six hundred two".