61692498541 has 2 divisors, whose sum is σ = 61692498542. Its totient is φ = 61692498540.

The previous prime is 61692498523. The next prime is 61692498557. The reversal of 61692498541 is 14589429616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46248222916 + 15444275625 = 215054^2 + 124275^2 .

It is a cyclic number.

It is not a de Polignac number, because 61692498541 - 2¹¹ = 61692496493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61692498521) 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, 30846249270 + 30846249271.

It is an arithmetic number, because the mean of its divisors is an integer number (30846249271).

Almost surely, 2^61692498541 is an apocalyptic number.

It is an amenable number.

61692498541 is a deficient number, since it is larger than the sum of its proper divisors (1).

61692498541 is an equidigital number, since it uses as much as digits as its factorization.

61692498541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The spelling of 61692498541 in words is "sixty-one billion, six hundred ninety-two million, four hundred ninety-eight thousand, five hundred forty-one".