39863400061 has 16 divisors (see below), whose sum is σ = 43178434560. Its totient is φ = 36693938160.

The previous prime is 39863400047. The next prime is 39863400119. The reversal of 39863400061 is 16000436893.

It is a cyclic number.

It is not a de Polignac number, because 39863400061 - 2¹⁵ = 39863367293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39863399987 and 39863400023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39863400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28545 + ... + 283798.

It is an arithmetic number, because the mean of its divisors is an integer number (2698652160).

Almost surely, 2^39863400061 is an apocalyptic number.

39863400061 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39863400061 is a deficient number, since it is larger than the sum of its proper divisors (3315034499).

39863400061 is a wasteful number, since it uses less digits than its factorization.

39863400061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312576.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 39863400061 in words is "thirty-nine billion, eight hundred sixty-three million, four hundred thousand, sixty-one".