40072072054 has 32 divisors (see below), whose sum is σ = 70049016576. Its totient is φ = 16837074720.

The previous prime is 40072072039. The next prime is 40072072057. The reversal of 40072072054 is 45027027004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40072072057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185757 + ... + 338599.

It is an arithmetic number, because the mean of its divisors is an integer number (2189031768).

Almost surely, 2^40072072054 is an apocalyptic number.

40072072054 is a deficient number, since it is larger than the sum of its proper divisors (29976944522).

40072072054 is a wasteful number, since it uses less digits than its factorization.

40072072054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153220.

The product of its (nonzero) digits is 15680, while the sum is 31.

Adding to 40072072054 its reverse (45027027004), we get a palindrome (85099099058).

The spelling of 40072072054 in words is "forty billion, seventy-two million, seventy-two thousand, fifty-four".