40151421524 has 12 divisors (see below), whose sum is σ = 71978768148. Its totient is φ = 19586059200.

The previous prime is 40151421511. The next prime is 40151421553. The reversal of 40151421524 is 42512415104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 895924624 + 39255496900 = 29932^2 + 198130^2 .

It is a super-2 number, since 2×40151421524² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122412707 + ... + 122413034.

It is an arithmetic number, because the mean of its divisors is an integer number (5998230679).

Almost surely, 2^40151421524 is an apocalyptic number.

It is an amenable number.

40151421524 is a deficient number, since it is larger than the sum of its proper divisors (31827346624).

40151421524 is a wasteful number, since it uses less digits than its factorization.

40151421524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244825786 (or 244825784 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 40151421524 its reverse (42512415104), we get a palindrome (82663836628).

The spelling of 40151421524 in words is "forty billion, one hundred fifty-one million, four hundred twenty-one thousand, five hundred twenty-four".