740688878132478 has 112 divisors (see below), whose sum is σ = 1834866166363776. Its totient is φ = 222272037072720.

The previous prime is 740688878132477. The next prime is 740688878132491. The reversal of 740688878132478 is 874231878886047.

740688878132478 is a `hidden beast` number, since 7 + 4 + 0 + 6 + 8 + 8 + 8 + 7 + 8 + 132 + 478 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 740688878132397 and 740688878132406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740688878132477) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 222539200 + ... + 225843027.

It is an arithmetic number, because the mean of its divisors is an integer number (16382733628248).

Almost surely, 2^{740688878132478} is an apocalyptic number.

740688878132478 is an abundant number, since it is smaller than the sum of its proper divisors (1094177288231298).

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

740688878132478 is a wasteful number, since it uses less digits than its factorization.

740688878132478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448382361 (or 448382346 counting only the distinct ones).

The product of its (nonzero) digits is 6473908224, while the sum is 81.

The spelling of 740688878132478 in words is "seven hundred forty trillion, six hundred eighty-eight billion, eight hundred seventy-eight million, one hundred thirty-two thousand, four hundred seventy-eight".