40512350551 has 4 divisors (see below), whose sum is σ = 41500456704. Its totient is φ = 39524244400.

The previous prime is 40512350513. The next prime is 40512350573. The reversal of 40512350551 is 15505321504.

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 40512350551 - 2¹³ = 40512342359 is a prime.

It is a super-2 number, since 2×40512350551² (a number of 22 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 (40512350591) 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, 494053015 + ... + 494053096.

It is an arithmetic number, because the mean of its divisors is an integer number (10375114176).

Almost surely, 2^40512350551 is an apocalyptic number.

40512350551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40512350551 is a deficient number, since it is larger than the sum of its proper divisors (988106153).

40512350551 is an equidigital number, since it uses as much as digits as its factorization.

40512350551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988106152.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 40512350551 in words is "forty billion, five hundred twelve million, three hundred fifty thousand, five hundred fifty-one".