42455406645511 has 4 divisors (see below), whose sum is σ = 44301293890992. Its totient is φ = 40609519400032.

The previous prime is 42455406645503. The next prime is 42455406645523. The reversal of 42455406645511 is 11554660455424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42455406645511 - 2³ = 42455406645503 is a prime.

It is a super-2 number, since 2×42455406645511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455406645541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922943622706 + ... + 922943622751.

It is an arithmetic number, because the mean of its divisors is an integer number (11075323472748).

Almost surely, 2^{42455406645511} is an apocalyptic number.

42455406645511 is a deficient number, since it is larger than the sum of its proper divisors (1845887245481).

42455406645511 is a wasteful number, since it uses less digits than its factorization.

42455406645511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845887245480.

The product of its (nonzero) digits is 11520000, while the sum is 52.

The spelling of 42455406645511 in words is "forty-two trillion, four hundred fifty-five billion, four hundred six million, six hundred forty-five thousand, five hundred eleven".