51542828897 has 8 divisors (see below), whose sum is σ = 59027051136. Its totient is φ = 44088846912.

The previous prime is 51542828891. The next prime is 51542828899. The reversal of 51542828897 is 79882824515.

It is a happy number.

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 51542828897 - 2⁶ = 51542828833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51542828891) 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, 7556408 + ... + 7563225.

It is an arithmetic number, because the mean of its divisors is an integer number (7378381392).

Almost surely, 2^51542828897 is an apocalyptic number.

It is an amenable number.

51542828897 is a deficient number, since it is larger than the sum of its proper divisors (7484222239).

51542828897 is a wasteful number, since it uses less digits than its factorization.

51542828897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15120127.

The product of its digits is 12902400, while the sum is 59.

The spelling of 51542828897 in words is "fifty-one billion, five hundred forty-two million, eight hundred twenty-eight thousand, eight hundred ninety-seven".