2621693121432 has 64 divisors (see below), whose sum is σ = 8171511033600. Its totient is φ = 680959251840.

The previous prime is 2621693121431. The next prime is 2621693121451. The reversal of 2621693121432 is 2341213961262.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621693121431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709330707 + ... + 709334402.

It is an arithmetic number, because the mean of its divisors is an integer number (127679859900).

Almost surely, 2^{2621693121432} is an apocalyptic number.

2621693121432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2621693121432 is an abundant number, since it is smaller than the sum of its proper divisors (5549817912168).

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

2621693121432 is a wasteful number, since it uses less digits than its factorization.

2621693121432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418665136 (or 1418665132 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The spelling of 2621693121432 in words is "two trillion, six hundred twenty-one billion, six hundred ninety-three million, one hundred twenty-one thousand, four hundred thirty-two".