7126447643755 has 64 divisors (see below), whose sum is σ = 9472652034048. Its totient is φ = 5103599679360.

The previous prime is 7126447643743. The next prime is 7126447643759. The reversal of 7126447643755 is 5573467446217.

It is a happy number.

It is not a de Polignac number, because 7126447643755 - 2⁵ = 7126447643723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7126447643693 and 7126447643702.

It is not an unprimeable number, because it can be changed into a prime (7126447643759) 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, 2154956812 + ... + 2154960118.

It is an arithmetic number, because the mean of its divisors is an integer number (148010188032).

Almost surely, 2^{7126447643755} is an apocalyptic number.

7126447643755 is a deficient number, since it is larger than the sum of its proper divisors (2346204390293).

7126447643755 is a wasteful number, since it uses less digits than its factorization.

7126447643755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816.

The product of its digits is 118540800, while the sum is 61.

The spelling of 7126447643755 in words is "seven trillion, one hundred twenty-six billion, four hundred forty-seven million, six hundred forty-three thousand, seven hundred fifty-five".