40266526542 has 64 divisors (see below), whose sum is σ = 90131602176. Its totient is φ = 11889711360.

The previous prime is 40266526481. The next prime is 40266526577. The reversal of 40266526542 is 24562566204.

It is a junction number, because it is equal to n+sod(n) for n = 40266526494 and 40266526503.

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, 349548 + ... + 450240.

It is an arithmetic number, because the mean of its divisors is an integer number (1408306284).

Almost surely, 2^40266526542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40266526542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45065801088).

40266526542 is an abundant number, since it is smaller than the sum of its proper divisors (49865075634).

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

40266526542 is a wasteful number, since it uses less digits than its factorization.

40266526542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100865.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 40266526542 in words is "forty billion, two hundred sixty-six million, five hundred twenty-six thousand, five hundred forty-two".