61400043127 has 2 divisors, whose sum is σ = 61400043128. Its totient is φ = 61400043126.

The previous prime is 61400043121. The next prime is 61400043137. The reversal of 61400043127 is 72134000416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61400043127 - 2⁷ = 61400042999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61400043095 and 61400043104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61400043121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30700021563 + 30700021564.

It is an arithmetic number, because the mean of its divisors is an integer number (30700021564).

Almost surely, 2^61400043127 is an apocalyptic number.

61400043127 is a deficient number, since it is larger than the sum of its proper divisors (1).

61400043127 is an equidigital number, since it uses as much as digits as its factorization.

61400043127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 61400043127 in words is "sixty-one billion, four hundred million, forty-three thousand, one hundred twenty-seven".