61244832851 has 6 divisors (see below), whose sum is σ = 62775044556. Its totient is φ = 59751054800.

The previous prime is 61244832829. The next prime is 61244832931. The reversal of 61244832851 is 15823844216.

It is a de Polignac number, because none of the positive numbers 2^k-61244832851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61244832811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18215105 + ... + 18218466.

It is an arithmetic number, because the mean of its divisors is an integer number (10462507426).

Almost surely, 2^61244832851 is an apocalyptic number.

61244832851 is a deficient number, since it is larger than the sum of its proper divisors (1530211705).

61244832851 is an equidigital number, since it uses as much as digits as its factorization.

61244832851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36433653 (or 36433612 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The spelling of 61244832851 in words is "sixty-one billion, two hundred forty-four million, eight hundred thirty-two thousand, eight hundred fifty-one".