40121745235424 has 48 divisors (see below), whose sum is σ = 85082859509760. Its totient is φ = 18569671697280.

The previous prime is 40121745235421. The next prime is 40121745235457. The reversal of 40121745235424 is 42453254712104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121745235421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879223004 + ... + 879268635.

It is an arithmetic number, because the mean of its divisors is an integer number (1772559573120).

Almost surely, 2^{40121745235424} is an apocalyptic number.

It is an amenable number.

40121745235424 is an abundant number, since it is smaller than the sum of its proper divisors (44961114274336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40121745235424 is a wasteful number, since it uses less digits than its factorization.

40121745235424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758491703 (or 1758491695 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

Adding to 40121745235424 its reverse (42453254712104), we get a palindrome (82574999947528).

The spelling of 40121745235424 in words is "forty trillion, one hundred twenty-one billion, seven hundred forty-five million, two hundred thirty-five thousand, four hundred twenty-four".