61247510767 has 12 divisors (see below), whose sum is σ = 65100568176. Its totient is φ = 57610753280.

The previous prime is 61247510761. The next prime is 61247510771. The reversal of 61247510767 is 76701574216.

It is not a de Polignac number, because 61247510767 - 2¹⁵ = 61247477999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61247510761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435798 + ... + 558940.

It is an arithmetic number, because the mean of its divisors is an integer number (5425047348).

Almost surely, 2^61247510767 is an apocalyptic number.

61247510767 is a deficient number, since it is larger than the sum of its proper divisors (3853057409).

61247510767 is a wasteful number, since it uses less digits than its factorization.

61247510767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124898 (or 124881 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 61247510767 in words is "sixty-one billion, two hundred forty-seven million, five hundred ten thousand, seven hundred sixty-seven".