61730350051 has 8 divisors (see below), whose sum is σ = 62223996080. Its totient is φ = 61237975968.

The previous prime is 61730349929. The next prime is 61730350079. The reversal of 61730350051 is 15005303716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61730350051 - 2¹⁹ = 61729825763 is a prime.

It is a super-2 number, since 2×61730350051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61730349995 and 61730350022.

It is not an unprimeable number, because it can be changed into a prime (61730350151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220416 + ... + 414781.

It is an arithmetic number, because the mean of its divisors is an integer number (7777999510).

Almost surely, 2^61730350051 is an apocalyptic number.

61730350051 is a deficient number, since it is larger than the sum of its proper divisors (493646029).

61730350051 is a wasteful number, since it uses less digits than its factorization.

61730350051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635973.

The product of its (nonzero) digits is 9450, while the sum is 31.

Adding to 61730350051 its reverse (15005303716), we get a palindrome (76735653767).

The spelling of 61730350051 in words is "sixty-one billion, seven hundred thirty million, three hundred fifty thousand, fifty-one".