61439226099 has 8 divisors (see below), whose sum is σ = 81920313792. Its totient is φ = 40958811240.

The previous prime is 61439226097. The next prime is 61439226113. The reversal of 61439226099 is 99062293416.

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

It is not a de Polignac number, because 61439226099 - 2¹ = 61439226097 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61439226097) 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, 111132 + ... + 367734.

It is an arithmetic number, because the mean of its divisors is an integer number (10240039224).

Almost surely, 2^61439226099 is an apocalyptic number.

61439226099 is a deficient number, since it is larger than the sum of its proper divisors (20481087693).

61439226099 is a wasteful number, since it uses less digits than its factorization.

61439226099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336417.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 61439226099 in words is "sixty-one billion, four hundred thirty-nine million, two hundred twenty-six thousand, ninety-nine".