61822693254 has 32 divisors (see below), whose sum is σ = 141378921216. Its totient is φ = 17654888160.

The previous prime is 61822693253. The next prime is 61822693277. The reversal of 61822693254 is 45239622816.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61822693253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277957 + ... + 448224.

It is an arithmetic number, because the mean of its divisors is an integer number (4418091288).

Almost surely, 2^61822693254 is an apocalyptic number.

61822693254 is an abundant number, since it is smaller than the sum of its proper divisors (79556227962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61822693254 is a wasteful number, since it uses less digits than its factorization.

61822693254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728220.

The product of its digits is 1244160, while the sum is 48.

The spelling of 61822693254 in words is "sixty-one billion, eight hundred twenty-two million, six hundred ninety-three thousand, two hundred fifty-four".