61402713371 has 2 divisors, whose sum is σ = 61402713372. Its totient is φ = 61402713370.

The previous prime is 61402713331. The next prime is 61402713413. The reversal of 61402713371 is 17331720416.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61402713371 is a prime.

It is not a weakly prime, because it can be changed into another prime (61402713331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30701356685 + 30701356686.

It is an arithmetic number, because the mean of its divisors is an integer number (30701356686).

Almost surely, 2^61402713371 is an apocalyptic number.

61402713371 is a deficient number, since it is larger than the sum of its proper divisors (1).

61402713371 is an equidigital number, since it uses as much as digits as its factorization.

61402713371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 61402713371 in words is "sixty-one billion, four hundred two million, seven hundred thirteen thousand, three hundred seventy-one".