61769123236 has 12 divisors (see below), whose sum is σ = 109087672540. Its totient is φ = 30601216800.

The previous prime is 61769123209. The next prime is 61769123239. The reversal of 61769123236 is 63232196716.

It can be written as a sum of positive squares in 2 ways, for example, as 31437417636 + 30331705600 = 177306^2 + 174160^2 .

It is a super-2 number, since 2×61769123236² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61769123239) 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, 70835715 + ... + 70836586.

Almost surely, 2^61769123236 is an apocalyptic number.

It is an amenable number.

61769123236 is a deficient number, since it is larger than the sum of its proper divisors (47318549304).

61769123236 is a wasteful number, since it uses less digits than its factorization.

61769123236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141672414 (or 141672412 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The spelling of 61769123236 in words is "sixty-one billion, seven hundred sixty-nine million, one hundred twenty-three thousand, two hundred thirty-six".