40051551604 has 12 divisors (see below), whose sum is σ = 70601823684. Its totient is φ = 19879601984.

The previous prime is 40051551583. The next prime is 40051551613. The reversal of 40051551604 is 40615515004.

It can be written as a sum of positive squares in 2 ways, for example, as 31435999204 + 8615552400 = 177302^2 + 92820^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36542839 + ... + 36543934.

It is an arithmetic number, because the mean of its divisors is an integer number (5883485307).

Almost surely, 2^40051551604 is an apocalyptic number.

It is an amenable number.

40051551604 is a deficient number, since it is larger than the sum of its proper divisors (30550272080).

40051551604 is a wasteful number, since it uses less digits than its factorization.

40051551604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73086914 (or 73086912 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 40051551604 in words is "forty billion, fifty-one million, five hundred fifty-one thousand, six hundred four".