40142421351 has 24 divisors (see below), whose sum is σ = 61441786224. Its totient is φ = 25167916800.

The previous prime is 40142421349. The next prime is 40142421353. The reversal of 40142421351 is 15312424104.

40142421351 is a `hidden beast` number, since 401 + 4 + 242 + 13 + 5 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (40142421349) and next prime (40142421353).

It is not a de Polignac number, because 40142421351 - 2¹ = 40142421349 is a prime.

It is a super-2 number, since 2×40142421351² (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 (40142421353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98220 + ... + 299886.

It is an arithmetic number, because the mean of its divisors is an integer number (2560074426).

Almost surely, 2^40142421351 is an apocalyptic number.

40142421351 is a deficient number, since it is larger than the sum of its proper divisors (21299364873).

40142421351 is a wasteful number, since it uses less digits than its factorization.

40142421351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202991 (or 202988 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 40142421351 its reverse (15312424104), we get a palindrome (55454845455).

The spelling of 40142421351 in words is "forty billion, one hundred forty-two million, four hundred twenty-one thousand, three hundred fifty-one".