1625470745261 has 8 divisors (see below), whose sum is σ = 1775187301248. Its totient is φ = 1476078604000.

The previous prime is 1625470745257. The next prime is 1625470745267.

It is a happy number.

1625470745261 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1625470745261 - 2² = 1625470745257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625470745267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81093200 + ... + 81113241.

It is an arithmetic number, because the mean of its divisors is an integer number (221898412656).

Almost surely, 2^{1625470745261} is an apocalyptic number.

1625470745261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1625470745261 is a deficient number, since it is larger than the sum of its proper divisors (149716555987).

1625470745261 is a wasteful number, since it uses less digits than its factorization.

1625470745261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162207363.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 1625470745261 in words is "one trillion, six hundred twenty-five billion, four hundred seventy million, seven hundred forty-five thousand, two hundred sixty-one".