6499379237450 has 96 divisors (see below), whose sum is σ = 13234487795712. Its totient is φ = 2355063480000.

The previous prime is 6499379237447. The next prime is 6499379237453. The reversal of 6499379237450 is 547329739946.

It is an interprime number because it is at equal distance from previous prime (6499379237447) and next prime (6499379237453).

It is a super-2 number, since 2×6499379237450² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6499379237453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189187775 + ... + 189222125.

It is an arithmetic number, because the mean of its divisors is an integer number (137859247872).

Almost surely, 2^{6499379237450} is an apocalyptic number.

6499379237450 is an abundant number, since it is smaller than the sum of its proper divisors (6735108558262).

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

6499379237450 is a wasteful number, since it uses less digits than its factorization.

6499379237450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35580 (or 35575 counting only the distinct ones).

The product of its (nonzero) digits is 308629440, while the sum is 68.

The spelling of 6499379237450 in words is "six trillion, four hundred ninety-nine billion, three hundred seventy-nine million, two hundred thirty-seven thousand, four hundred fifty".