61084210651 has 4 divisors (see below), whose sum is σ = 61208618904. Its totient is φ = 60959802400.

The previous prime is 61084210643. The next prime is 61084210661. The reversal of 61084210651 is 15601248016.

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

It is a cyclic number.

It is not a de Polignac number, because 61084210651 - 2³ = 61084210643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61084210601) 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, 62203390 + ... + 62204371.

It is an arithmetic number, because the mean of its divisors is an integer number (15302154726).

Almost surely, 2^61084210651 is an apocalyptic number.

61084210651 is a deficient number, since it is larger than the sum of its proper divisors (124408253).

61084210651 is a wasteful number, since it uses less digits than its factorization.

61084210651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124408252.

The product of its (nonzero) digits is 11520, while the sum is 34.

Adding to 61084210651 its reverse (15601248016), we get a palindrome (76685458667).

The spelling of 61084210651 in words is "sixty-one billion, eighty-four million, two hundred ten thousand, six hundred fifty-one".