371721115317552 has 640 divisors, whose sum is σ = 1378685946451968. Its totient is φ = 83050831872000.

The previous prime is 371721115317527. The next prime is 371721115317553. The reversal of 371721115317552 is 255713511127173.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 371721115317495 and 371721115317504.

It is not an unprimeable number, because it can be changed into a prime (371721115317553) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 80245518 + ... + 84751314.

Almost surely, 2^{371721115317552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 371721115317552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689342973225984).

371721115317552 is an abundant number, since it is smaller than the sum of its proper divisors (1006964831134416).

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

371721115317552 is a wasteful number, since it uses less digits than its factorization.

371721115317552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505957 (or 4505951 counting only the distinct ones).

The product of its digits is 1543500, while the sum is 51.

The spelling of 371721115317552 in words is "three hundred seventy-one trillion, seven hundred twenty-one billion, one hundred fifteen million, three hundred seventeen thousand, five hundred fifty-two".