40748155690 has 32 divisors (see below), whose sum is σ = 80064884160. Its totient is φ = 14808192000.

The previous prime is 40748155673. The next prime is 40748155691. The reversal of 40748155690 is 9655184704.

It is a happy number.

40748155690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40748155690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40748155691) 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, 60421 + ... + 291799.

It is an arithmetic number, because the mean of its divisors is an integer number (2502027630).

Almost surely, 2^40748155690 is an apocalyptic number.

40748155690 is a deficient number, since it is larger than the sum of its proper divisors (39316728470).

40748155690 is a wasteful number, since it uses less digits than its factorization.

40748155690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232998.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 40748155690 in words is "forty billion, seven hundred forty-eight million, one hundred fifty-five thousand, six hundred ninety".