39427801429428 has 36 divisors (see below), whose sum is σ = 99665294829828. Its totient is φ = 13142524711680.

The previous prime is 39427801429399. The next prime is 39427801429519. The reversal of 39427801429428 is 82492410872493.

It is a happy number.

39427801429428 is a `hidden beast` number, since 3 + 9 + 427 + 80 + 1 + 42 + 94 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32472355196304 + 6955446233124 = 5698452^2 + 2637318^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3358858 + ... + 9494078.

Almost surely, 2^{39427801429428} is an apocalyptic number.

It is an amenable number.

39427801429428 is an abundant number, since it is smaller than the sum of its proper divisors (60237493400400).

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

39427801429428 is a wasteful number, since it uses less digits than its factorization.

39427801429428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313744 (or 6313739 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 39427801429428 in words is "thirty-nine trillion, four hundred twenty-seven billion, eight hundred one million, four hundred twenty-nine thousand, four hundred twenty-eight".