42154211401 has 4 divisors (see below), whose sum is σ = 43514024704. Its totient is φ = 40794398100.

The previous prime is 42154211389. The next prime is 42154211417. The reversal of 42154211401 is 10411245124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42154211401 - 2⁵ = 42154211369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42154211431) 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, 679906605 + ... + 679906666.

It is an arithmetic number, because the mean of its divisors is an integer number (10878506176).

Almost surely, 2^42154211401 is an apocalyptic number.

It is an amenable number.

42154211401 is a deficient number, since it is larger than the sum of its proper divisors (1359813303).

42154211401 is a wasteful number, since it uses less digits than its factorization.

42154211401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359813302.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 42154211401 its reverse (10411245124), we get a palindrome (52565456525).

The spelling of 42154211401 in words is "forty-two billion, one hundred fifty-four million, two hundred eleven thousand, four hundred one".