40870520081787 has 8 divisors (see below), whose sum is σ = 59448029209920. Its totient is φ = 24770012170760.

The previous prime is 40870520081779. The next prime is 40870520081801. The reversal of 40870520081787 is 78718002507804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40870520081787 - 2³ = 40870520081779 is a prime.

It is a super-2 number, since 2×40870520081787² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40870520081707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619250304237 + ... + 619250304302.

It is an arithmetic number, because the mean of its divisors is an integer number (7431003651240).

Almost surely, 2^{40870520081787} is an apocalyptic number.

40870520081787 is a deficient number, since it is larger than the sum of its proper divisors (18577509128133).

40870520081787 is a wasteful number, since it uses less digits than its factorization.

40870520081787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238500608553.

The product of its (nonzero) digits is 7024640, while the sum is 57.

The spelling of 40870520081787 in words is "forty trillion, eight hundred seventy billion, five hundred twenty million, eighty-one thousand, seven hundred eighty-seven".