40638152526 has 64 divisors (see below), whose sum is σ = 85757460480. Its totient is φ = 12821683680.

The previous prime is 40638152519. The next prime is 40638152543. The reversal of 40638152526 is 62525183604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1559335 + ... + 1585181.

It is an arithmetic number, because the mean of its divisors is an integer number (1339960320).

Almost surely, 2^40638152526 is an apocalyptic number.

40638152526 is an abundant number, since it is smaller than the sum of its proper divisors (45119307954).

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

40638152526 is a wasteful number, since it uses less digits than its factorization.

40638152526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26069.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 40638152526 in words is "forty billion, six hundred thirty-eight million, one hundred fifty-two thousand, five hundred twenty-six".