1261107093628 has 48 divisors (see below), whose sum is σ = 2328528384000. Its totient is φ = 596857659840.

The previous prime is 1261107093619. The next prime is 1261107093637. The reversal of 1261107093628 is 8263907011621.

It is an interprime number because it is at equal distance from previous prime (1261107093619) and next prime (1261107093637).

It is a super-2 number, since 2×1261107093628² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446598 + ... + 1649746.

It is an arithmetic number, because the mean of its divisors is an integer number (48511008000).

Almost surely, 2^{1261107093628} is an apocalyptic number.

It is an amenable number.

1261107093628 is a deficient number, since it is larger than the sum of its proper divisors (1067421290372).

1261107093628 is a wasteful number, since it uses less digits than its factorization.

1261107093628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203370 (or 1203368 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 1261107093628 in words is "one trillion, two hundred sixty-one billion, one hundred seven million, ninety-three thousand, six hundred twenty-eight".