39394473055 has 32 divisors (see below), whose sum is σ = 54272590848. Its totient is φ = 26890617600.

The previous prime is 39394473049. The next prime is 39394473077. The reversal of 39394473055 is 55037449393.

It is a happy number.

It is not a de Polignac number, because 39394473055 - 2²⁹ = 38857602143 is a prime.

It is a super-2 number, since 2×39394473055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39394472993 and 39394473011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17045350 + ... + 17047660.

It is an arithmetic number, because the mean of its divisors is an integer number (1696018464).

Almost surely, 2^39394473055 is an apocalyptic number.

39394473055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39394473055 is a deficient number, since it is larger than the sum of its proper divisors (14878117793).

39394473055 is a wasteful number, since it uses less digits than its factorization.

39394473055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327.

The product of its (nonzero) digits is 6123600, while the sum is 52.

The spelling of 39394473055 in words is "thirty-nine billion, three hundred ninety-four million, four hundred seventy-three thousand, fifty-five".