40345214522251 has 4 divisors (see below), whose sum is σ = 42099354284112. Its totient is φ = 38591074760392.

The previous prime is 40345214522233. The next prime is 40345214522273. The reversal of 40345214522251 is 15222541254304.

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 40345214522251 - 2⁵ = 40345214522219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40345214322251) 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, 877069880896 + ... + 877069880941.

It is an arithmetic number, because the mean of its divisors is an integer number (10524838571028).

Almost surely, 2^{40345214522251} is an apocalyptic number.

40345214522251 is a deficient number, since it is larger than the sum of its proper divisors (1754139761861).

40345214522251 is a wasteful number, since it uses less digits than its factorization.

40345214522251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754139761860.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 40345214522251 its reverse (15222541254304), we get a palindrome (55567755776555).

The spelling of 40345214522251 in words is "forty trillion, three hundred forty-five billion, two hundred fourteen million, five hundred twenty-two thousand, two hundred fifty-one".