261094190502 has 32 divisors (see below), whose sum is σ = 542149032960. Its totient is φ = 83737078560.

The previous prime is 261094190501. The next prime is 261094190503. The reversal of 261094190502 is 205091490162.

It is an interprime number because it is at equal distance from previous prime (261094190501) and next prime (261094190503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261094190501) 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, 4024852 + ... + 4089207.

It is an arithmetic number, because the mean of its divisors is an integer number (16942157280).

Almost surely, 2^261094190502 is an apocalyptic number.

261094190502 is an abundant number, since it is smaller than the sum of its proper divisors (281054842458).

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

261094190502 is a wasteful number, since it uses less digits than its factorization.

261094190502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114268.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 261094190502 in words is "two hundred sixty-one billion, ninety-four million, one hundred ninety thousand, five hundred two".