40357721245 has 8 divisors (see below), whose sum is σ = 48521867616. Its totient is φ = 32224442256.

The previous prime is 40357721237. The next prime is 40357721263. The reversal of 40357721245 is 54212775304.

40357721245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40357721245 - 2³ = 40357721237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40357721198 and 40357721207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7713967 + ... + 7719196.

It is an arithmetic number, because the mean of its divisors is an integer number (6065233452).

Almost surely, 2^40357721245 is an apocalyptic number.

It is an amenable number.

40357721245 is a deficient number, since it is larger than the sum of its proper divisors (8164146371).

40357721245 is a wasteful number, since it uses less digits than its factorization.

40357721245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15433691.

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 40357721245 in words is "forty billion, three hundred fifty-seven million, seven hundred twenty-one thousand, two hundred forty-five".