40251050257720 has 16 divisors (see below), whose sum is σ = 90564863079960. Its totient is φ = 16100420103072.

The previous prime is 40251050257667. The next prime is 40251050257727. The reversal of 40251050257720 is 2775205015204.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1006276256443 = 40251050257720 / (4 + 0 + 2 + 5 + 1 + 0 + 5 + 0 + 2 + 5 + 7 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40251050257727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503138128182 + ... + 503138128261.

Almost surely, 2^{40251050257720} is an apocalyptic number.

40251050257720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40251050257720 is an abundant number, since it is smaller than the sum of its proper divisors (50313812822240).

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

40251050257720 is a wasteful number, since it uses less digits than its factorization.

40251050257720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006276256454 (or 1006276256450 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 40251050257720 in words is "forty trillion, two hundred fifty-one billion, fifty million, two hundred fifty-seven thousand, seven hundred twenty".