54857631382819 has 16 divisors (see below), whose sum is σ = 59958633404160. Its totient is φ = 49964882273280.

The previous prime is 54857631382783. The next prime is 54857631382847. The reversal of 54857631382819 is 91828313675845.

It is a cyclic number.

It is not a de Polignac number, because 54857631382819 - 2⁷ = 54857631382691 is a prime.

It is a super-2 number, since 2×54857631382819² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54857631380819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127101967 + ... + 127532839.

It is an arithmetic number, because the mean of its divisors is an integer number (3747414587760).

Almost surely, 2^{54857631382819} is an apocalyptic number.

54857631382819 is a deficient number, since it is larger than the sum of its proper divisors (5101002021341).

54857631382819 is a wasteful number, since it uses less digits than its factorization.

54857631382819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672510.

The product of its digits is 348364800, while the sum is 70.

The spelling of 54857631382819 in words is "fifty-four trillion, eight hundred fifty-seven billion, six hundred thirty-one million, three hundred eighty-two thousand, eight hundred nineteen".