40728074427 has 16 divisors (see below), whose sum is σ = 60343224480. Its totient is φ = 27149648256.

The previous prime is 40728074419. The next prime is 40728074437. The reversal of 40728074427 is 72447082704.

It is not a de Polignac number, because 40728074427 - 2³ = 40728074419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40728074407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276303 + ... + 397239.

It is an arithmetic number, because the mean of its divisors is an integer number (3771451530).

Almost surely, 2^40728074427 is an apocalyptic number.

40728074427 is a deficient number, since it is larger than the sum of its proper divisors (19615150053).

40728074427 is a wasteful number, since it uses less digits than its factorization.

40728074427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133419 (or 133413 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 45.

The spelling of 40728074427 in words is "forty billion, seven hundred twenty-eight million, seventy-four thousand, four hundred twenty-seven".