2620320131045 has 8 divisors (see below), whose sum is σ = 3144759029880. Its totient is φ = 2096006189760.

The previous prime is 2620320131041. The next prime is 2620320131053. The reversal of 2620320131045 is 5401310230262.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1513965367489 + 1106354763556 = 1230433^2 + 1051834^2 .

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

It is not a de Polignac number, because 2620320131045 - 2² = 2620320131041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2620320130999 and 2620320131017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620320131041) 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, 31193246 + ... + 31277135.

It is an arithmetic number, because the mean of its divisors is an integer number (393094878735).

Almost surely, 2^{2620320131045} is an apocalyptic number.

It is an amenable number.

2620320131045 is a deficient number, since it is larger than the sum of its proper divisors (524438898835).

2620320131045 is an equidigital number, since it uses as much as digits as its factorization.

2620320131045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62478775.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 2620320131045 in words is "two trillion, six hundred twenty billion, three hundred twenty million, one hundred thirty-one thousand, forty-five".