2690426845920 has 192 divisors, whose sum is σ = 9312771315456. Its totient is φ = 647463751680.

The previous prime is 2690426845891. The next prime is 2690426845921. The reversal of 2690426845920 is 295486240962.

It is a happy number.

It is a super-2 number, since 2×2690426845920² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690426845921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1136314 + ... + 2583033.

It is an arithmetic number, because the mean of its divisors is an integer number (48504017268).

Almost surely, 2^{2690426845920} is an apocalyptic number.

2690426845920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690426845920 is an abundant number, since it is smaller than the sum of its proper divisors (6622344469536).

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

2690426845920 is a wasteful number, since it uses less digits than its factorization.

2690426845920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719513 (or 3719505 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 2690426845920 in words is "two trillion, six hundred ninety billion, four hundred twenty-six million, eight hundred forty-five thousand, nine hundred twenty".