61690189314 has 24 divisors (see below), whose sum is σ = 133601240592. Its totient is φ = 18981596400.

The previous prime is 61690189261. The next prime is 61690189343. The reversal of 61690189314 is 41398109616.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30418212 + ... + 30420239.

It is an arithmetic number, because the mean of its divisors is an integer number (5566718358).

Almost surely, 2^61690189314 is an apocalyptic number.

61690189314 is an abundant number, since it is smaller than the sum of its proper divisors (71911051278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61690189314 is a wasteful number, since it uses less digits than its factorization.

61690189314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60838482 (or 60838469 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 61690189314 in words is "sixty-one billion, six hundred ninety million, one hundred eighty-nine thousand, three hundred fourteen".