39427399494 has 144 divisors (see below), whose sum is σ = 101486387808. Its totient is φ = 11026439424.

The previous prime is 39427399493. The next prime is 39427399519. The reversal of 39427399494 is 49499372493.

39427399494 is a `hidden beast` number, since 3 + 9 + 427 + 39 + 94 + 94 = 666.

39427399494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39427399493) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28841599 + ... + 28842965.

It is an arithmetic number, because the mean of its divisors is an integer number (704766582).

Almost surely, 2^39427399494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39427399494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50743193904).

39427399494 is an abundant number, since it is smaller than the sum of its proper divisors (62058988314).

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

39427399494 is a wasteful number, since it uses less digits than its factorization.

39427399494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2049 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The spelling of 39427399494 in words is "thirty-nine billion, four hundred twenty-seven million, three hundred ninety-nine thousand, four hundred ninety-four".