54762981381 has 6 divisors (see below), whose sum is σ = 79102084230. Its totient is φ = 36508654248.

The previous prime is 54762981359. The next prime is 54762981409. The reversal of 54762981381 is 18318926745.

54762981381 is a `hidden beast` number, since 5 + 4 + 7 + 629 + 8 + 1 + 3 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 43986672900 + 10776308481 = 209730^2 + 103809^2 .

It is not a de Polignac number, because 54762981381 - 2²¹ = 54760884229 is a prime.

It is a super-2 number, since 2×54762981381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54762981341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3042387846 + ... + 3042387863.

It is an arithmetic number, because the mean of its divisors is an integer number (13183680705).

Almost surely, 2^54762981381 is an apocalyptic number.

It is an amenable number.

54762981381 is a deficient number, since it is larger than the sum of its proper divisors (24339102849).

54762981381 is a wasteful number, since it uses less digits than its factorization.

54762981381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084775715 (or 6084775712 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 54762981381 in words is "fifty-four billion, seven hundred sixty-two million, nine hundred eighty-one thousand, three hundred eighty-one".