5372437644 has 192 divisors, whose sum is σ = 17074713600. Its totient is φ = 1426553856.

The previous prime is 5372437643. The next prime is 5372437691. The reversal of 5372437644 is 4467342735.

5372437644 is a `hidden beast` number, since 537 + 2 + 4 + 3 + 76 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 5372437644.

It is not an unprimeable number, because it can be changed into a prime (5372437643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 757764 + ... + 764820.

It is an arithmetic number, because the mean of its divisors is an integer number (88930800).

Almost surely, 2^5372437644 is an apocalyptic number.

5372437644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5372437644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8537356800).

5372437644 is an abundant number, since it is smaller than the sum of its proper divisors (11702275956).

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

5372437644 is a wasteful number, since it uses less digits than its factorization.

5372437644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 7141 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 45.

The square root of 5372437644 is about 73296.9142870285. The cubic root of 5372437644 is about 1751.4206308164.

The spelling of 5372437644 in words is "five billion, three hundred seventy-two million, four hundred thirty-seven thousand, six hundred forty-four".