7454405538 has 56 divisors (see below), whose sum is σ = 16794355968. Its totient is φ = 2480413752.

The previous prime is 7454405479. The next prime is 7454405561. The reversal of 7454405538 is 8355044547.

7454405538 is a `hidden beast` number, since 7 + 4 + 54 + 40 + 553 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7454405493 and 7454405502.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 880795 + ... + 889217.

Almost surely, 2^7454405538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7454405538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8397177984).

7454405538 is an abundant number, since it is smaller than the sum of its proper divisors (9339950430).

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

7454405538 is an equidigital number, since it uses as much as digits as its factorization.

7454405538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9050 (or 9035 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The square root of 7454405538 is about 86338.8993328036. The cubic root of 7454405538 is about 1953.4591712726.

The spelling of 7454405538 in words is "seven billion, four hundred fifty-four million, four hundred five thousand, five hundred thirty-eight".