54899357642 has 16 divisors (see below), whose sum is σ = 85205894760. Its totient is φ = 26497775808.

The previous prime is 54899357641. The next prime is 54899357647. The reversal of 54899357642 is 24675399845.

It can be written as a sum of positive squares in 4 ways, for example, as 51261940921 + 3637416721 = 226411^2 + 60311^2 .

It is not an unprimeable number, because it can be changed into a prime (54899357641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201248 + ... + 387684.

Almost surely, 2^54899357642 is an apocalyptic number.

54899357642 is a deficient number, since it is larger than the sum of its proper divisors (30306537118).

54899357642 is a wasteful number, since it uses less digits than its factorization.

54899357642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191545.

The product of its digits is 65318400, while the sum is 62.

The spelling of 54899357642 in words is "fifty-four billion, eight hundred ninety-nine million, three hundred fifty-seven thousand, six hundred forty-two".