61077685337 has 4 divisors (see below), whose sum is σ = 61079414580. Its totient is φ = 61075956096.

The previous prime is 61077685297. The next prime is 61077685367. The reversal of 61077685337 is 73358677016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56239648201 + 4838037136 = 237149^2 + 69556^2 .

It is a cyclic number.

It is not a de Polignac number, because 61077685337 - 2¹⁰ = 61077684313 is a prime.

It is a super-2 number, since 2×61077685337² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61077685367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810512 + ... + 882657.

It is an arithmetic number, because the mean of its divisors is an integer number (15269853645).

Almost surely, 2^61077685337 is an apocalyptic number.

It is an amenable number.

61077685337 is a deficient number, since it is larger than the sum of its proper divisors (1729243).

61077685337 is a wasteful number, since it uses less digits than its factorization.

61077685337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729242.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 61077685337 in words is "sixty-one billion, seventy-seven million, six hundred eighty-five thousand, three hundred thirty-seven".