61761001357 has 4 divisors (see below), whose sum is σ = 67375637856. Its totient is φ = 56146364860.

The previous prime is 61761001297. The next prime is 61761001369. The reversal of 61761001357 is 75310016716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61761001357 - 2²⁷ = 61626783629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61761002357) 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 in 3 ways as a sum of consecutive naturals, for example, 2807318233 + ... + 2807318254.

It is an arithmetic number, because the mean of its divisors is an integer number (16843909464).

Almost surely, 2^61761001357 is an apocalyptic number.

It is an amenable number.

61761001357 is a deficient number, since it is larger than the sum of its proper divisors (5614636499).

61761001357 is a wasteful number, since it uses less digits than its factorization.

61761001357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614636498.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 61761001357 in words is "sixty-one billion, seven hundred sixty-one million, one thousand, three hundred fifty-seven".