61249132461 has 8 divisors (see below), whose sum is σ = 89089647264. Its totient is φ = 37120686320.

The previous prime is 61249132433. The next prime is 61249132463. The reversal of 61249132461 is 16423194216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61249132461 - 2¹¹ = 61249130413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61249132463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928017126 + ... + 928017191.

It is an arithmetic number, because the mean of its divisors is an integer number (11136205908).

Almost surely, 2^61249132461 is an apocalyptic number.

It is an amenable number.

61249132461 is a deficient number, since it is larger than the sum of its proper divisors (27840514803).

61249132461 is a wasteful number, since it uses less digits than its factorization.

61249132461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856034331.

The product of its digits is 62208, while the sum is 39.

The spelling of 61249132461 in words is "sixty-one billion, two hundred forty-nine million, one hundred thirty-two thousand, four hundred sixty-one".