41951540691 has 6 divisors (see below), whose sum is σ = 60596669900. Its totient is φ = 27967693788.

The previous prime is 41951540677. The next prime is 41951540693. The reversal of 41951540691 is 19604515914.

41951540691 is a `hidden beast` number, since 4 + 1 + 9 + 515 + 40 + 6 + 91 = 666.

It is not a de Polignac number, because 41951540691 - 2⁶ = 41951540627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41951540693) 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 5 ways as a sum of consecutive naturals, for example, 2330641141 + ... + 2330641158.

Almost surely, 2^41951540691 is an apocalyptic number.

41951540691 is a deficient number, since it is larger than the sum of its proper divisors (18645129209).

41951540691 is a wasteful number, since it uses less digits than its factorization.

41951540691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661282305 (or 4661282302 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 41951540691 in words is "forty-one billion, nine hundred fifty-one million, five hundred forty thousand, six hundred ninety-one".