61390829233 has 16 divisors (see below), whose sum is σ = 65459719296. Its totient is φ = 57373113600.

The previous prime is 61390829231. The next prime is 61390829273. The reversal of 61390829233 is 33292809316.

It is a cyclic number.

It is not a de Polignac number, because 61390829233 - 2¹ = 61390829231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61390829231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10503810 + ... + 10509652.

It is an arithmetic number, because the mean of its divisors is an integer number (4091232456).

Almost surely, 2^61390829233 is an apocalyptic number.

It is an amenable number.

61390829233 is a deficient number, since it is larger than the sum of its proper divisors (4068890063).

61390829233 is a wasteful number, since it uses less digits than its factorization.

61390829233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 61390829233 in words is "sixty-one billion, three hundred ninety million, eight hundred twenty-nine thousand, two hundred thirty-three".