51307156454 has 4 divisors (see below), whose sum is σ = 76960734684. Its totient is φ = 25653578226.

The previous prime is 51307156427. The next prime is 51307156463. The reversal of 51307156454 is 45465170315.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12826789112 + ... + 12826789115.

It is an arithmetic number, because the mean of its divisors is an integer number (19240183671).

Almost surely, 2^51307156454 is an apocalyptic number.

51307156454 is a deficient number, since it is larger than the sum of its proper divisors (25653578230).

51307156454 is a wasteful number, since it uses less digits than its factorization.

51307156454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25653578229.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 51307156454 in words is "fifty-one billion, three hundred seven million, one hundred fifty-six thousand, four hundred fifty-four".