40690627506 has 96 divisors (see below), whose sum is σ = 96417135360. Its totient is φ = 12826072656.

The previous prime is 40690627501. The next prime is 40690627529. The reversal of 40690627506 is 60572609604.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40690627501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5416605 + ... + 5424111.

It is an arithmetic number, because the mean of its divisors is an integer number (1004345160).

Almost surely, 2^40690627506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40690627506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48208567680).

40690627506 is an abundant number, since it is smaller than the sum of its proper divisors (55726507854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40690627506 is a wasteful number, since it uses less digits than its factorization.

40690627506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130 (or 8118 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 40690627506 in words is "forty billion, six hundred ninety million, six hundred twenty-seven thousand, five hundred six".