61234253451 has 32 divisors (see below), whose sum is σ = 106479137280. Its totient is φ = 34045295328.

The previous prime is 61234253401. The next prime is 61234253459. The reversal of 61234253451 is 15435243216.

61234253451 is a `hidden beast` number, since 61 + 23 + 42 + 534 + 5 + 1 = 666.

It is not a de Polignac number, because 61234253451 - 2⁷ = 61234253323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61234253459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4371261 + ... + 4385246.

It is an arithmetic number, because the mean of its divisors is an integer number (3327473040).

Almost surely, 2^61234253451 is an apocalyptic number.

61234253451 is a deficient number, since it is larger than the sum of its proper divisors (45244883829).

61234253451 is a wasteful number, since it uses less digits than its factorization.

61234253451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756560 (or 8756554 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 61234253451 its reverse (15435243216), we get a palindrome (76669496667).

The spelling of 61234253451 in words is "sixty-one billion, two hundred thirty-four million, two hundred fifty-three thousand, four hundred fifty-one".