61424651511 has 10 divisors (see below), whose sum is σ = 91757812872. Its totient is φ = 40949767620.

The previous prime is 61424651503. The next prime is 61424651521. The reversal of 61424651511 is 11515642416.

61424651511 is a `hidden beast` number, since 6 + 1 + 42 + 465 + 151 + 1 = 666.

It is not a de Polignac number, because 61424651511 - 2³ = 61424651503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61424651521) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 379164435 + ... + 379164596.

Almost surely, 2^61424651511 is an apocalyptic number.

61424651511 is a deficient number, since it is larger than the sum of its proper divisors (30333161361).

61424651511 is an equidigital number, since it uses as much as digits as its factorization.

61424651511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758329043 (or 758329034 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 61424651511 in words is "sixty-one billion, four hundred twenty-four million, six hundred fifty-one thousand, five hundred eleven".