61042021119 has 28 divisors (see below), whose sum is σ = 91545430416. Its totient is φ = 40683892032.

The previous prime is 61042021097. The next prime is 61042021121. The reversal of 61042021119 is 91112024016.

61042021119 is a `hidden beast` number, since 6 + 10 + 420 + 211 + 19 = 666.

It is not a de Polignac number, because 61042021119 - 2²³ = 61033632511 is a prime.

It is a super-2 number, since 2×61042021119² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61042021092 and 61042021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61042021189) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3502902 + ... + 3520284.

Almost surely, 2^61042021119 is an apocalyptic number.

61042021119 is a deficient number, since it is larger than the sum of its proper divisors (30503409297).

61042021119 is an equidigital number, since it uses as much as digits as its factorization.

61042021119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218 (or 22203 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 61042021119 in words is "sixty-one billion, forty-two million, twenty-one thousand, one hundred nineteen".