40921369247 has 4 divisors (see below), whose sum is σ = 44641493736. Its totient is φ = 37201244760.

The previous prime is 40921369193. The next prime is 40921369249. The reversal of 40921369247 is 74296312904.

40921369247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40921369247 - 2⁶ = 40921369183 is a prime.

It is a super-2 number, since 2×40921369247² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40921369249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860062228 + ... + 1860062249.

It is an arithmetic number, because the mean of its divisors is an integer number (11160373434).

Almost surely, 2^40921369247 is an apocalyptic number.

40921369247 is a deficient number, since it is larger than the sum of its proper divisors (3720124489).

40921369247 is a wasteful number, since it uses less digits than its factorization.

40921369247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720124488.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 40921369247 in words is "forty billion, nine hundred twenty-one million, three hundred sixty-nine thousand, two hundred forty-seven".