40231015654 has 4 divisors (see below), whose sum is σ = 60346523484. Its totient is φ = 20115507826.

The previous prime is 40231015609. The next prime is 40231015673. The reversal of 40231015654 is 45651013204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057753912 + ... + 10057753915.

It is an arithmetic number, because the mean of its divisors is an integer number (15086630871).

Almost surely, 2^40231015654 is an apocalyptic number.

40231015654 is a deficient number, since it is larger than the sum of its proper divisors (20115507830).

40231015654 is a wasteful number, since it uses less digits than its factorization.

40231015654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20115507829.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 40231015654 its reverse (45651013204), we get a palindrome (85882028858).

The spelling of 40231015654 in words is "forty billion, two hundred thirty-one million, fifteen thousand, six hundred fifty-four".