40000177776 has 40 divisors (see below), whose sum is σ = 111282547600. Its totient is φ = 12307746816.

The previous prime is 40000177769. The next prime is 40000177783. The reversal of 40000177776 is 67777100004.

It is an interprime number because it is at equal distance from previous prime (40000177769) and next prime (40000177783).

It is a super-2 number, since 2×40000177776² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32050801 + ... + 32052048.

It is an arithmetic number, because the mean of its divisors is an integer number (2782063690).

Almost surely, 2^40000177776 is an apocalyptic number.

It is an amenable number.

40000177776 is an abundant number, since it is smaller than the sum of its proper divisors (71282369824).

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

40000177776 is a wasteful number, since it uses less digits than its factorization.

40000177776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64102873 (or 64102867 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 39.

The spelling of 40000177776 in words is "forty billion, one hundred seventy-seven thousand, seven hundred seventy-six".