61946436506 has 16 divisors (see below), whose sum is σ = 94216689000. Its totient is φ = 30541091328.

The previous prime is 61946436499. The next prime is 61946436581. The reversal of 61946436506 is 60563464916.

It can be written as a sum of positive squares in 4 ways, for example, as 28417530625 + 33528905881 = 168575^2 + 183109^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538760 + ... + 643548.

Almost surely, 2^61946436506 is an apocalyptic number.

61946436506 is a deficient number, since it is larger than the sum of its proper divisors (32270252494).

61946436506 is a wasteful number, since it uses less digits than its factorization.

61946436506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108913.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 61946436506 in words is "sixty-one billion, nine hundred forty-six million, four hundred thirty-six thousand, five hundred six".