39928437461 has 16 divisors (see below), whose sum is σ = 44124092160. Its totient is φ = 35827384320.

The previous prime is 39928437427. The next prime is 39928437463. The reversal of 39928437461 is 16473482993.

It is a cyclic number.

It is not a de Polignac number, because 39928437461 - 2³⁰ = 38854695637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39928437397 and 39928437406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39928437463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3707861 + ... + 3718613.

It is an arithmetic number, because the mean of its divisors is an integer number (2757755760).

Almost surely, 2^39928437461 is an apocalyptic number.

It is an amenable number.

39928437461 is a deficient number, since it is larger than the sum of its proper divisors (4195654699).

39928437461 is a wasteful number, since it uses less digits than its factorization.

39928437461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15116.

The product of its digits is 7838208, while the sum is 56.

The spelling of 39928437461 in words is "thirty-nine billion, nine hundred twenty-eight million, four hundred thirty-seven thousand, four hundred sixty-one".