42774252540 has 48 divisors (see below), whose sum is σ = 119780760960. Its totient is φ = 11405243200.

The previous prime is 42774252533. The next prime is 42774252571. The reversal of 42774252540 is 4525247724.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42774252492 and 42774252501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618715 + ... + 684365.

It is an arithmetic number, because the mean of its divisors is an integer number (2495432520).

Almost surely, 2^42774252540 is an apocalyptic number.

It is an amenable number.

42774252540 is an abundant number, since it is smaller than the sum of its proper divisors (77006508420).

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

42774252540 is a wasteful number, since it uses less digits than its factorization.

42774252540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76522 (or 76520 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 42.

The spelling of 42774252540 in words is "forty-two billion, seven hundred seventy-four million, two hundred fifty-two thousand, five hundred forty".