61106421379 has 16 divisors (see below), whose sum is σ = 65008652800. Its totient is φ = 57273225984.

The previous prime is 61106421377. The next prime is 61106421403. The reversal of 61106421379 is 97312460116.

It is a cyclic number.

It is not a de Polignac number, because 61106421379 - 2¹ = 61106421377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61106421377) 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, 8767354 + ... + 8774320.

It is an arithmetic number, because the mean of its divisors is an integer number (4063040800).

Almost surely, 2^61106421379 is an apocalyptic number.

61106421379 is a deficient number, since it is larger than the sum of its proper divisors (3902231421).

61106421379 is a wasteful number, since it uses less digits than its factorization.

61106421379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11842.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 61106421379 in words is "sixty-one billion, one hundred six million, four hundred twenty-one thousand, three hundred seventy-nine".