61376257933 has 2 divisors, whose sum is σ = 61376257934. Its totient is φ = 61376257932.

The previous prime is 61376257931. The next prime is 61376257939. The reversal of 61376257933 is 33975267316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51757160004 + 9619097929 = 227502^2 + 98077^2 .

It is a cyclic number.

It is not a de Polignac number, because 61376257933 - 2¹ = 61376257931 is a prime.

Together with 61376257931, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61376257931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30688128966 + 30688128967.

It is an arithmetic number, because the mean of its divisors is an integer number (30688128967).

Almost surely, 2^61376257933 is an apocalyptic number.

It is an amenable number.

61376257933 is a deficient number, since it is larger than the sum of its proper divisors (1).

61376257933 is an equidigital number, since it uses as much as digits as its factorization.

61376257933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 52.

The spelling of 61376257933 in words is "sixty-one billion, three hundred seventy-six million, two hundred fifty-seven thousand, nine hundred thirty-three".