40152421545 has 32 divisors (see below), whose sum is σ = 65040796800. Its totient is φ = 21149167104.

The previous prime is 40152421531. The next prime is 40152421577. The reversal of 40152421545 is 54512425104.

It is a happy number.

It is not a de Polignac number, because 40152421545 - 2⁵ = 40152421513 is a prime.

It is a super-2 number, since 2×40152421545² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7055061 + ... + 7060749.

It is an arithmetic number, because the mean of its divisors is an integer number (2032524900).

Almost surely, 2^40152421545 is an apocalyptic number.

It is an amenable number.

40152421545 is a deficient number, since it is larger than the sum of its proper divisors (24888375255).

40152421545 is a wasteful number, since it uses less digits than its factorization.

40152421545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11449.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 40152421545 its reverse (54512425104), we get a palindrome (94664846649).

The spelling of 40152421545 in words is "forty billion, one hundred fifty-two million, four hundred twenty-one thousand, five hundred forty-five".