51101010489697 has 4 divisors (see below), whose sum is σ = 58401154845376. Its totient is φ = 43800866134020.

The previous prime is 51101010489689. The next prime is 51101010489731. The reversal of 51101010489697 is 79698401010115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51101010489697 - 2³ = 51101010489689 is a prime.

It is a super-2 number, since 2×51101010489697² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51101010489637) 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, 3650072177829 + ... + 3650072177842.

It is an arithmetic number, because the mean of its divisors is an integer number (14600288711344).

Almost surely, 2^{51101010489697} is an apocalyptic number.

It is an amenable number.

51101010489697 is a deficient number, since it is larger than the sum of its proper divisors (7300144355679).

51101010489697 is an equidigital number, since it uses as much as digits as its factorization.

51101010489697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300144355678.

The product of its (nonzero) digits is 544320, while the sum is 52.

The spelling of 51101010489697 in words is "fifty-one trillion, one hundred one billion, ten million, four hundred eighty-nine thousand, six hundred ninety-seven".