61402851411 has 16 divisors (see below), whose sum is σ = 89384238720. Its totient is φ = 37184265920.

The previous prime is 61402851407. The next prime is 61402851449. The reversal of 61402851411 is 11415820416.

61402851411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61402851411 - 2² = 61402851407 is a prime.

It is a super-2 number, since 2×61402851411² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61402851401) 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, 697410 + ... + 780503.

It is an arithmetic number, because the mean of its divisors is an integer number (5586514920).

Almost surely, 2^61402851411 is an apocalyptic number.

61402851411 is a deficient number, since it is larger than the sum of its proper divisors (27981387309).

61402851411 is a wasteful number, since it uses less digits than its factorization.

61402851411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479186.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 61402851411 in words is "sixty-one billion, four hundred two million, eight hundred fifty-one thousand, four hundred eleven".