61126643011 has 32 divisors (see below), whose sum is σ = 75481227648. Its totient is φ = 48306585600.

The previous prime is 61126642999. The next prime is 61126643029. The reversal of 61126643011 is 11034662116.

It is not a de Polignac number, because 61126643011 - 2¹⁵ = 61126610243 is a prime.

It is a super-2 number, since 2×61126643011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61126643051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4237411 + ... + 4251811.

It is an arithmetic number, because the mean of its divisors is an integer number (2358788364).

Almost surely, 2^61126643011 is an apocalyptic number.

61126643011 is a deficient number, since it is larger than the sum of its proper divisors (14354584637).

61126643011 is a wasteful number, since it uses less digits than its factorization.

61126643011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 61126643011 in words is "sixty-one billion, one hundred twenty-six million, six hundred forty-three thousand, eleven".