61242026751 has 32 divisors (see below), whose sum is σ = 90980064000. Its totient is φ = 40715180064.

The previous prime is 61242026749. The next prime is 61242026753. The reversal of 61242026751 is 15762024216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61242026749) and next prime (61242026753).

It is not a de Polignac number, because 61242026751 - 2¹ = 61242026749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242026753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20836240 + ... + 20839178.

It is an arithmetic number, because the mean of its divisors is an integer number (2843127000).

Almost surely, 2^61242026751 is an apocalyptic number.

61242026751 is a deficient number, since it is larger than the sum of its proper divisors (29738037249).

61242026751 is a wasteful number, since it uses less digits than its factorization.

61242026751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 61242026751 in words is "sixty-one billion, two hundred forty-two million, twenty-six thousand, seven hundred fifty-one".