1951954074252 has 324 divisors, whose sum is σ = 6142462247376. Its totient is φ = 511754181120.

The previous prime is 1951954074251. The next prime is 1951954074289. The reversal of 1951954074252 is 2524704591591.

1951954074252 is a `hidden beast` number, since 1 + 9 + 5 + 1 + 9 + 540 + 7 + 42 + 52 = 666.

It is not an unprimeable number, because it can be changed into a prime (1951954074251) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1652797102 + ... + 1652798282.

Almost surely, 2^{1951954074252} is an apocalyptic number.

1951954074252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 1397123×1397124.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1951954074252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3071231123688).

1951954074252 is an abundant number, since it is smaller than the sum of its proper divisors (4190508173124).

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

1951954074252 is a wasteful number, since it uses less digits than its factorization.

1951954074252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 1951954074252 in words is "one trillion, nine hundred fifty-one billion, nine hundred fifty-four million, seventy-four thousand, two hundred fifty-two".