4542902415405 has 20 divisors (see below), whose sum is σ = 8143573219452. Its totient is φ = 2422881288000.

The previous prime is 4542902415391. The next prime is 4542902415409. The reversal of 4542902415405 is 5045142092454.

4542902415405 is a `hidden beast` number, since 4 + 542 + 90 + 2 + 4 + 15 + 4 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 662955836841 + 3879946578564 = 814221^2 + 1969758^2 .

It is not a de Polignac number, because 4542902415405 - 2¹⁵ = 4542902382637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542902415409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5608521096 + ... + 5608521905.

Almost surely, 2^{4542902415405} is an apocalyptic number.

4542902415405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4542902415405 is a deficient number, since it is larger than the sum of its proper divisors (3600670804047).

4542902415405 is a wasteful number, since it uses less digits than its factorization.

4542902415405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217043018 (or 11217043009 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 4542902415405 in words is "four trillion, five hundred forty-two billion, nine hundred two million, four hundred fifteen thousand, four hundred five".