61024407249 has 16 divisors (see below), whose sum is σ = 87906559104. Its totient is φ = 37432723200.

The previous prime is 61024407239. The next prime is 61024407251. The reversal of 61024407249 is 94270442016.

It is not a de Polignac number, because 61024407249 - 2²⁰ = 61023358673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (61024407239) 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 15 ways as a sum of consecutive naturals, for example, 2503512 + ... + 2527769.

It is an arithmetic number, because the mean of its divisors is an integer number (5494159944).

Almost surely, 2^61024407249 is an apocalyptic number.

It is an amenable number.

61024407249 is a deficient number, since it is larger than the sum of its proper divisors (26882151855).

61024407249 is a wasteful number, since it uses less digits than its factorization.

61024407249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031608.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 61024407249 in words is "sixty-one billion, twenty-four million, four hundred seven thousand, two hundred forty-nine".