540554520451 has 12 divisors (see below), whose sum is σ = 594315829576. Its totient is φ = 491286993120.

The previous prime is 540554520431. The next prime is 540554520491. The reversal of 540554520451 is 154025455045.

It is not a de Polignac number, because 540554520451 - 2¹⁹ = 540553996163 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540554520431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98970 + ... + 1044463.

Almost surely, 2^540554520451 is an apocalyptic number.

540554520451 is a deficient number, since it is larger than the sum of its proper divisors (53761309125).

540554520451 is a wasteful number, since it uses less digits than its factorization.

540554520451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147362 (or 1147351 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

Adding to 540554520451 its reverse (154025455045), we get a palindrome (694579975496).

The spelling of 540554520451 in words is "five hundred forty billion, five hundred fifty-four million, five hundred twenty thousand, four hundred fifty-one".