5451443634 has 64 divisors (see below), whose sum is σ = 14125224960. Its totient is φ = 1362070080.

The previous prime is 5451443629. The next prime is 5451443639. The reversal of 5451443634 is 4363441545.

It is an interprime number because it is at equal distance from previous prime (5451443629) and next prime (5451443639).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 5451443592 and 5451443601.

It is not an unprimeable number, because it can be changed into a prime (5451443639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252372 + ... + 273119.

It is an arithmetic number, because the mean of its divisors is an integer number (220706640).

Almost surely, 2^5451443634 is an apocalyptic number.

5451443634 is an abundant number, since it is smaller than the sum of its proper divisors (8673781326).

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

5451443634 is a wasteful number, since it uses less digits than its factorization.

5451443634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525535.

The product of its digits is 345600, while the sum is 39.

The square root of 5451443634 is about 73833.8921769671. The cubic root of 5451443634 is about 1759.9642333038.

The spelling of 5451443634 in words is "five billion, four hundred fifty-one million, four hundred forty-three thousand, six hundred thirty-four".