40720600291 has 24 divisors (see below), whose sum is σ = 50376112080. Its totient is φ = 32725389312.

The previous prime is 40720600267. The next prime is 40720600303. The reversal of 40720600291 is 19200602704.

40720600291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40720600291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40720603291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135150 + ... + 315763.

It is an arithmetic number, because the mean of its divisors is an integer number (2099004670).

Almost surely, 2^40720600291 is an apocalyptic number.

40720600291 is a deficient number, since it is larger than the sum of its proper divisors (9655511789).

40720600291 is a wasteful number, since it uses less digits than its factorization.

40720600291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451043 (or 451036 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 40720600291 in words is "forty billion, seven hundred twenty million, six hundred thousand, two hundred ninety-one".