7872864454 has 32 divisors (see below), whose sum is σ = 14563584000. Its totient is φ = 3108311712.

The previous prime is 7872864449. The next prime is 7872864469. The reversal of 7872864454 is 4544682787.

It is a super-2 number, since 2×7872864454² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7872864395 and 7872864404.

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, 48547 + ... + 134545.

It is an arithmetic number, because the mean of its divisors is an integer number (455112000).

Almost surely, 2^7872864454 is an apocalyptic number.

7872864454 is a deficient number, since it is larger than the sum of its proper divisors (6690719546).

7872864454 is a wasteful number, since it uses less digits than its factorization.

7872864454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86524.

The product of its digits is 12042240, while the sum is 55.

The square root of 7872864454 is about 88729.1634920560. The cubic root of 7872864454 is about 1989.3487472723.

The spelling of 7872864454 in words is "seven billion, eight hundred seventy-two million, eight hundred sixty-four thousand, four hundred fifty-four".