61986623288 has 16 divisors (see below), whose sum is σ = 116252939880. Its totient is φ = 30985839328.

The previous prime is 61986623263. The next prime is 61986623299. The reversal of 61986623288 is 88232668916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898706 + ... + 965217.

Almost surely, 2^61986623288 is an apocalyptic number.

It is an amenable number.

61986623288 is a deficient number, since it is larger than the sum of its proper divisors (54266316592).

61986623288 is a wasteful number, since it uses less digits than its factorization.

61986623288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868086 (or 1868082 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The spelling of 61986623288 in words is "sixty-one billion, nine hundred eighty-six million, six hundred twenty-three thousand, two hundred eighty-eight".