74774001438 has 24 divisors (see below), whose sum is σ = 165778020408. Its totient is φ = 24345023472.

The previous prime is 74774001433. The next prime is 74774001473. The reversal of 74774001438 is 83410047747.

It is a junction number, because it is equal to n+sod(n) for n = 74774001393 and 74774001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74774001431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48302845 + ... + 48304392.

It is an arithmetic number, because the mean of its divisors is an integer number (6907417517).

Almost surely, 2^74774001438 is an apocalyptic number.

74774001438 is an abundant number, since it is smaller than the sum of its proper divisors (91004018970).

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

74774001438 is a wasteful number, since it uses less digits than its factorization.

74774001438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96607288 (or 96607285 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 74774001438 in words is "seventy-four billion, seven hundred seventy-four million, one thousand, four hundred thirty-eight".