61827738922 has 8 divisors (see below), whose sum is σ = 92742696900. Its totient is φ = 30913506624.

The previous prime is 61827738887. The next prime is 61827738943. The reversal of 61827738922 is 22983772816.

It is a happy number.

61827738922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61826325201 + 1413721 = 248649^2 + 1189^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160354 + ... + 386482.

Almost surely, 2^61827738922 is an apocalyptic number.

61827738922 is a deficient number, since it is larger than the sum of its proper divisors (30914957978).

61827738922 is a wasteful number, since it uses less digits than its factorization.

61827738922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362840.

The product of its digits is 4064256, while the sum is 55.

The spelling of 61827738922 in words is "sixty-one billion, eight hundred twenty-seven million, seven hundred thirty-eight thousand, nine hundred twenty-two".