40009501962 has 64 divisors (see below), whose sum is σ = 91025848320. Its totient is φ = 13019454000.

The previous prime is 40009501943. The next prime is 40009501969. The reversal of 40009501962 is 26910590004.

It is not an unprimeable number, because it can be changed into a prime (40009501969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6198837 + ... + 6205287.

It is an arithmetic number, because the mean of its divisors is an integer number (1422278880).

Almost surely, 2^40009501962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40009501962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45512924160).

40009501962 is an abundant number, since it is smaller than the sum of its proper divisors (51016346358).

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

40009501962 is a wasteful number, since it uses less digits than its factorization.

40009501962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 40009501962 in words is "forty billion, nine million, five hundred one thousand, nine hundred sixty-two".