2620775638975 has 12 divisors (see below), whose sum is σ = 3499743469096. Its totient is φ = 1935342010080.

The previous prime is 2620775638969. The next prime is 2620775638981. The reversal of 2620775638975 is 5798365770262.

It is an interprime number because it is at equal distance from previous prime (2620775638969) and next prime (2620775638981).

It is not a de Polignac number, because 2620775638975 - 2¹⁹ = 2620775114687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620775638975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4031962197 + ... + 4031962846.

Almost surely, 2^{2620775638975} is an apocalyptic number.

2620775638975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2620775638975 is a deficient number, since it is larger than the sum of its proper divisors (878967830121).

2620775638975 is a wasteful number, since it uses less digits than its factorization.

2620775638975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063925066 (or 8063925061 counting only the distinct ones).

The product of its (nonzero) digits is 266716800, while the sum is 67.

The spelling of 2620775638975 in words is "two trillion, six hundred twenty billion, seven hundred seventy-five million, six hundred thirty-eight thousand, nine hundred seventy-five".