7828985454 has 16 divisors (see below), whose sum is σ = 16482074880. Its totient is φ = 2472311160.

The previous prime is 7828985453. The next prime is 7828985467. The reversal of 7828985454 is 4545898287.

It is a super-2 number, since 2×7828985454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828985453) 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, 34337542 + ... + 34337769.

It is an arithmetic number, because the mean of its divisors is an integer number (1030129680).

Almost surely, 2^7828985454 is an apocalyptic number.

7828985454 is an abundant number, since it is smaller than the sum of its proper divisors (8653089426).

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

7828985454 is a wasteful number, since it uses less digits than its factorization.

7828985454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68675335.

The product of its digits is 25804800, while the sum is 60.

The square root of 7828985454 is about 88481.5543150096. The cubic root of 7828985454 is about 1985.6460158571.

The spelling of 7828985454 in words is "seven billion, eight hundred twenty-eight million, nine hundred eighty-five thousand, four hundred fifty-four".